Download MHSC MLDV500 Operating instructions

MLDV
Direct Vent
Gas Fireplace
Model: MLDV500
Installation & Operating Instructions
WARNING
If the information in these instructions is not
followed exactly, a fire or explosion may
result causing property damage, personal
injury or loss of life.
– Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
– WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
– Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
WARNING: Improper installation, adjustment, alteration,
services or maintenance can cause injury or property
damage. Refer to this manual. For assistance or additional
information consult a qualified installer, service agency
or the gas supplier.
This appliance may be installed in an aftermarket*,
permanently located, manufactured home (USA only) or
mobile home, where not prohibited by local codes.
This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is not
convertible for use with other gases, unless a certified
kit is used.
* Aftermarket: Completion of sale, not for purpose of resale, from the
manufacturer.
75d0004
MLDV cover
DUE TO HIGH TEMPERATURES, THE APPLIANCE
SHOULD BE LOCATED OUT OF TRAFFIC AND
AWAY FROM FURNITURE AND DRAPERIES.
CHILDREN AND ADULTS SHOULD BE ALERTED
TO THE HAZARDS OF HIGH SURFACE
TEMPERATURE AND SHOULD STAY AWAY TO
AVOID BURNS OR CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE SUPERVISED
WHEN THEY ARE IN THE SAME ROOM AS THE
APPLIANCE.
CLOTHING OR OTHER FLAMMABLE MATERIAL
SHOULD NOT BE PLACED ON OR NEAR THE
APPLIANCE.
Keep the room area clear and free
from combustible materials, gasoline,
and other flammable vapors and
liquids.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
75D0004 1/11 Rev. 10
MLDV Series Gas Fireplace
CONTENTS
Thank you and congratulations on your purchase of an
MHSC Fireplace.
PLEASE READ THE INSTALLATION AND OPERATION INSTRUCTIONS BEFORE USING THE APPLIANCE!
IMPORTANT: Read all instructions and warnings carefully before starting installation.
Failure to follow these instructions may result in a possible fire hazard and will void the warranty.
Important Safety Information...................................... 3
Checking Gas Pressure - SCS ................................. 38
Code Approval.............................................................. 4
Electrical Wiring - SCS . ............................................ 38
Junction Box Wiring............................................... 39
Command Center Wall Installation......................... 39
Wall Switch Installation.......................................... 39
Signature Command Wiring Diagram.................... 40
Product Specifications................................................ 5
High Elevations........................................................ 5
Gas Pressures......................................................... 5
Gas Specifications & Orifice Size............................ 5
Fireplace & Framing Dimensions .............................. 6
Pre-Installation Information......................................... 7
Before You Start....................................................... 7
Items Required for Installation................................. 7
Firebox Framing....................................................... 7
Fireplace Location.................................................... 7
Clearances.................................................................... 8
Secure Fireplace to Floor or Framing........................ 9
Finishing Material..................................................... 9
Venting Installation..................................................... 10
Installation Precautions.......................................... 10
Optional Top Vent Application................................ 11
Vent Pipe Clearances............................................ 12
Installation Planning............................................... 13
Horizontal & Vertical Terminations......................... 13
Termination Location.............................................. 14
Termination Clearances......................................... 15
How to Use the Vent Graph................................... 15
Rear Wall Vent Installation..................................... 16
Horizontal w/Vertical Rise Termination Config....... 18
Below Grade Installations...................................... 21
Vertical Through-the-Roof Applications.................. 22
Installation for Vertical Termination........................ 24
Flat Ceiling Installation........................................... 24
Flex Vent Installation.............................................. 26
Fireplace Installation.................................................. 29
Check Gas Type.................................................... 29
Gas Line Installation.............................................. 30
Check Gas Pressure - Millivolt ................................. 31
Electrical Installation - Millivolt................................. 31
Remote Wall Mounted Switch................................ 32
Optional Fan/Blower - BLOTBLDV)....................... 32
Operating Instructions - Millivolt.............................. 35
For Your Safety...................................................... 35
Lighting Pilot for the First Time.............................. 35
Lighting Pilot.......................................................... 36
Lighting Burner....................................................... 37
Optional Fan/Blower System - SCS.......................... 41
BLOTSDVSC......................................................... 41
BLOTSDV.............................................................. 42
Operating Instructions - SCS.................................... 43
For Your Safety...................................................... 43
Operating Instructions............................................ 44
To Turn Off Gas To Appliance................................ 44
Signature Command System Operation.................. 45
Final Installation......................................................... 48
Glass Frame Removal........................................... 48
Brick Installation..................................................... 48
Eyebrow/Canopy Installation................................. 48
Rockwool Placement............................................. 49
Log Placement....................................................... 49
Cleaning and Maintenance........................................ 52
Burner, Pilot and Control Compartment................. 52
Pilot Flame............................................................. 52
Burner Flame......................................................... 52
Vent System........................................................... 53
Glass Door............................................................. 53
Logs....................................................................... 53
Rock Wool . ........................................................... 53
Troubleshooting......................................................... 54
Standing Pilot Ignition............................................ 54
Signature Command System................................. 56
Replacement Parts..................................................... 57
Firebox Components.............................................. 57
Logs....................................................................... 58
Standing Pilot Millivolt Control .............................. 59
Signature Command System................................. 61
Venting Components.............................................. 63
Massachusetts Residents Only................................ 70
Warranty...................................................................... 71
Efficiencies................................................................. 72
75D0004
IMPORTANT SAFETY INFORMATION
MLDV Series Gas Fireplace
OWNER
Please leave these instructions with the appliance.
Please retain these instructions for future reference.
WARNING
INSTALLER
• Read this owner’s manual carefully and completely before trying to assemble,
operate, or service this fireplace.
• Any change to this fireplace or its controls can be dangerous.
• Improper installation or use of this fireplace can cause serious injury or
death from fire, burns, explosions, electrical shock and carbon monoxide
poisoning.
This fireplace is a vented product. This fireplace must be
properly installed by a qualified service person. The glass
door must be properly seated and sealed. If this unit is not
properly installed by a qualified service person with glass
door properly seated and sealed, combustion leakage
can occur.
CARBON MONOXIDE POISONING: Early signs of carbon
monoxide poisoning are similar to the flu with headaches,
dizziness and/or nausea. If you have these signs, the fireplace may not have been installed properly. Get fresh air
at once! Have the fireplace inspected and serviced by a
qualified service person. Some people are more affected
by carbon monoxide than others. These include pregnant
women, people with heart or lung disease or anemia,
those under the influence of alcohol, and those at high
altitudes.
Propane/LP gas and natural gas are both odorless. An
odor-making agent is added to each of these gases. The
odor helps you detect a gas leak. However, the odor added
to these gases can fade. Gas may be present even though
no odor exists.
Make certain you read and understand all warnings. Keep
this manual for reference. It is your guide to safe and proper
operation of this fireplace.
1. This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is not
convertible for use with other gases unless a certified
kit is used.
2. For propane/LP fireplace, do not place propane/LP
supply tank(s) inside any structure. Locate propane/
LP supply tank(s) outdoors. To prevent performance
problems, do not use propane/LP fuel tank of less than
100 lbs. capacity.
3. If you smell gas
• shut off gas supply.
• do not try to light any appliance.
• do not touch any electrical switch; do not use any
phone in your building .
• immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
75D0004
4.
Never install the fireplace
• in a recreational vehicle
• where curtains, furniture, clothing, or other flam-
mable objects are less than 42" from the front, top,
or sides of the fireplace
• in high traffic areas
• in windy or drafty areas
5. This fireplace reaches high temperatures. Keep children and adults away from hot surfaces to avoid burns
or clothing ignition. Fireplace will remain hot for a time
after shutdown. Allow surfaces to cool before touching.
6. Young children should be carefully supervised when
they are in the same room as the appliance. Toddlers,
young children and others may be susceptible to
accidental contact burns. A physical barrier is recommended if there are at risk individuals in the house. To
restrict access to a fireplace or stove, install an adjustable safety gate to keep toddlers, young children and
other at risk individuals out of the room and away from
hot surfaces.
7. Do not modify fireplace under any circumstances. Any
parts removed for servicing must be replaced prior to
operating fireplace.
8. Turn fireplace off and let cool before servicing, installing, or repairing. Only a qualified service person should
install, service, or repair the fireplace. Have burner
system inspected annually by a qualified service
person.
9. You must keep control compartments, burners, and
circulating air passages clean. More frequent cleaning may be needed due to excessive lint and dust.
Turn off the gas valve and pilot light before cleaning
fireplace.
10. Have venting system inspected annually by a qualified service person. If needed, have venting system
cleaned or repaired. See Cleaning and Maintenance,
Page 52.
11. Keep the area around your fireplace clear of combustible materials, gasoline, and other flammable vapor
and liquids. Do not run fireplace where these are used
or stored. Do not place items such as clothing or decorations on or around fireplace.
MLDV Series Gas Fireplace
IMPORTANT:
PLEASE READ THE FOLLOWING
CAREFULLY
It is normal for fireplaces fabricated of steel to give off
some expansion and/or contraction noises during the
start up or cool down cycle. Similar noises are found
with your furnace heat exchanger or car engine.
IMPORTANT:
PLEASE READ THE FOLLOWING
CAREFULLY
It is not unusual for gas fireplaces to give off some
odor the first time it is burned. This is due to the
manufacturing process.
Please ensure that your room is well ventilated
during burn off — open all windows.
It is recommended that you burn your fireplace for at
least ten (10) hours the first time you use it. Place the
fan switch in the “OFF” position during this time.
WARNING
12. Do not use this fireplace to cook food or burn paper or
other objects.
13. Never place anything on top of fireplace.
14. Do not use any solid fuels (wood, coal, paper, cardboard, etc.) in this fireplace. Use only the gas type
indicated on rating plate.
15. This appliance, when installed, must be electrically
grounded in accordance with local codes or in the
absence of local codes, with the National Electrical
Code, ANSI/NFPA 70, or the Canadian Electrical Code,
CSA C22.1.
16. Do not obstruct the flow of combustion and ventilation
air in any way. Provide adequate clearances around
air openings into the combustion chamber along with
adequate accessibility clearance for servicing and
proper operation.
17. When the appliance is installed directly on carpeting,
tile or other combustible material other than wood
flooring, you must set appliance on a metal or wood
panel or hearth pad extending the full width and depth
of the appliance.
18. Do not use fireplace if any part has been exposed to
or has been under water. Immediately call a qualified
service technician to inspect the appliance and replace
any part of the control system and any gas control
which as been submerged in water.
19. Do not operate fireplace if any log is broken.
20. Do not use a blower insert, heat exchanger insert, or
any other accessory not approved for use with this
fireplace.
21. Do not operate the fireplace with glass door removed,
cracked, or broken.
IMPORTANT SAFETY INFORMATION
Never connect unit to private (nonutility) gas wells. This gas is commonly
known as wellhead gas.
Code Approval
Direct Vent type appliances draw all combustion air from
outside of the dwelling through the vent pipe.
These appliances have been tested by CSA and found to
comply with the established standards for DIRECT VENT
GAS FIREPLACE HEATERS in the USA and Canada as
follows:
LISTED VENTED GAS FIREPLACE HEATER
TESTED TO:
ANSI Z21.88-2009 / CSA 2.33-2009 STANDARDS
A manufactured home (USA only) or mobile home OEM
installation must conform with the Manufactured Home
Construction and Safety Standard, Title 24 CFR, Part
3280, or when such a standard is not applicable, the
Standard for Manufactured Home Installations, ANSI/
NCSBCS A225.1, or Standard for Gas Equipped Recreational Vehicles and Mobile Housing, CSA Z240.4.
!
WARNING
HOT GLASS WILL
Nous recommandons
que nos
CAUSE BURNS.
appareils de chauffage au gaz
DO NOT TOUCH GLASS
soient installés
et entretenus par
UNTIL COOLED.
des professionnels
qui ont été
accrédités
aux È.U. par le National
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
Fireplace Institute
® (NFI) comme
étant des spécialistes du NFI en
matièred’appareils de chauffage
75D0004
au gaz.
product features
MLDV Series Gas Fireplace
product SPECIFICATIONS
• This appliance has been certified for use with
•
•
•
•
•
•
Insulation Board
either natural or propane gas. See appropriate
data plates.
This appliance is not for use with solid fuels.
The appliance is approved for bedroom or bedsitting room installations.
The appliance must be installed in accordance
with local codes if any. If none exist use the current installation code. ANSI Z223.1/NFPA 54 in
the USA, CSA B149 in Canada.
This appliance is mobile home appr-oved.
The appliance must be properly connected to a
venting system.
The appliance is not approved for closet or
recessed installations.
5/8" Nailing
Flange
1/2" Nailing
Flange
Ignitor
On/Off/RS
Switch
HIGH ELEVATIONS
Input ratings are shown in BTU per hour and are certified without deration for elevations up to 4,500 feet
(1,370 m) above sea level.
For elevations above 4,500 feet (1,370 m) in USA,
installation must be in accordance with the current
ANSI Z223.1/NFPA 54 and/or local codes having
jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installation at elevations above 4,500 feet (1,370 m).
Hi/Lo Knob
FP1984
Off/Pilot/On Knob
Figure 1 MLDV Series Fireplace
(Millivolt Control shown)
FP1984
MLDV components
Gas Specifications & ORIFICE SIZE
Model
Fuel
MLDV500NV Nat.
MLDV500PV
LP
MLDV500NSC Nat.
MLDV500PSC LP
Max.Input Min. Input
BTU/h
BTU/h
34,00022,000
34,00027,000
34,00022,000
34,00027,000
Orifice
Size
#33
1.8 mm
#33
1.8 mm
GAS pressures
Inlet Minimum
Inlet Maximum
Manifold Pressure
75D0004
Natural Propane (LP)
4.5” w.c.
11.0” w.c.
10.5” w.c.
13.0” w.c.
3.5” w.c.
10.0” w.c.
MLDV Series Gas Fireplace
30(6” (784 mm)
206”
(524 mm)
Min. Rough
Opening Depth
2256M”
(565 mm)
2256M”
(565 mm)
(9 36
21 56M
m ”
m
)
m
m
)
1/2” or 5/8”
91
Min. Rough Opening Width
(4256O” 91080 mm)
17
56O
” (
72
5256M” (1327 mm)
5256M” (1327 mm)
FIREPLACE and FRAMING DIMENSIONS
Min. Rough
Opening
Height
6”
(152 mm)
9556QE”
(246 mm)
50(6”
(1292 mm)
506M”
(1289 mm)
33” (838 mm)
276QE”
(694 mm)
34”
(864 mm)
356”
(79 mm)
256O"
(64 mm)
36” (914 mm)
41” (1041 mm)
76”
(187 mm)
1”
(25 mm)
156O”
(38 mm)
386M”
(984 mm)
446”
(1133 mm)
466”
(1184 mm)
1456O”
(368 mm)
2”
(51 mm)
WARNING
Figure 2 Fireplace and Framing Dimensions
750005
DVML MLDV dims
Do not fill spaces around firebox with
insulation or other materials. This
could cause a fire.
NOTE
COLD CLIMATE INSULATION
If you live in a cold climate, seal all cracks
around your appliance, and wherever cold air
could enter the room, with noncombustible
material. It is especially important to insulate
the outside chase cavity between the studs
and under the floor on which the appliance
rests, if the floor is above ground level.
75D0004
installation information
MLDV Series Gas Fireplace
Before You Start
Fireplace Location
Read this homeowner manual thoroughly and follow all
instructions carefully. Inspect all contents for shipping
damage and immediately inform your dealer if any damage
is found. Do not install any unit with damaged, incomplete,
or substitute parts. Check your packing list to verify that
all listed parts have been received. You should have the
following:
• Fireplace (Firebox and Burner System)
• Log Set
• Rock Wool
ITEMS REQUIRED FOR INSTALLATION
Tools and Building Materials
• Phillips Screwdriver • Framing Materials
• Hammer
• Wall Finishing Materials
• Saw and/or saber saw • Level
• Measuring Tape
• Pliers
• Electric Drill and Bits • Square
• Pipe Wrench
• Tee Joint
• Caulking Material (noncombustible)
• Fireplace Surround Material (noncombustible)
• Piping Complying with Local Codes
• Pipe Sealant Approved for use with Propane/LPG
Plan for the installation of your appliance. This includes
determining where the unit is to be installed, the vent configuration to be used, framing and finishing details, and
whether any optional accessories (i.e. blower, wall switch,
or remote control) are desired. Consult your local building
code agency to ensure compliance with local codes, including permits and inspections.
The following factors should be taken into consideration:
• Clearance to side-wall, ceiling, woodwork, and windows.
•
•
•
•
•
•
(Resistant to sulfur compounds)
firebox framing
Firebox framing can be built before or after the appliance
is set in place. Construct firebox framing following Figure 2
for firebox and framing dimensions. The framing headers
may rest on the top of the firebox standoffs. Do not bring
headers below top of standoffs. NOTE: When planning your
framing and installation, keep in mind that your gas line will
come in on the right side of the box (as you are facing it)
and your electricity will come in on the left side.
The firebox may be installed directly on a combustible floor
or raised on a platform of an appropriate height. When
the firebox is installed directly on carpeting, tile, or other
combustible material, other than wood flooring, the firebox
shall be installed on a metal or wood panel extending the
full width and depth of the enclosure.
•
Minimum clearances to combustibles must be maintained.
This fireplace may be installed along a wall, across a
corner, or use an exterior chase. Refer to Figure 3 for
suggested locations.
Location should be out of high traffic areas and away
from furniture and draperies due to heat from appliance.
Never obstruct the front opening of the fireplace.
Do not install in the vicinity where gasoline or other
flammable liquids may be stored.
Vent pipe routing. See Venting section found in this
manual for allowable venting configurations.
These units can be installed in a bedroom. See National
Fuel Gas Code ANSI Z233.1/NFPA 54 — (current
edition), the Uniform Mechanical Code — (current edition), and Local Building Codes for specific installation
requirements.
These units can be installed in a bathroom.
Y
E
A
X
C
Y
D
F
Figure 3 Locate Gas Fireplace
75D0004
B
A
B
C
D
E
F
Y
Flat on Wall
Cross Corner
Island**
Room Divider*
Flat on Wall Corner*
Chase Installation
6" Minimum
** Island (C) and room divider (D) installation is possible as long as the
horizontal portion of vent system (X) does not exceed 20'. See Install
Horizontal Termination Configuration on Pages 18 and 19.
* When you install your fireplace in (D) room divider or (E) flat on wall
corner positions (Y), a minimum of 6" clearance must be maintained
from perpendicular wall and front of fireplace.
clearances
MLDV Series Gas Fireplace
WARNING
Clearances to combustibles
Follow these instructions carefully to ensure safe installation. Failure
to follow instructions exactly can create a fire hazard.
The appliance cannot be installed on a carpet, tile or other combustible
material other than wood flooring. If installed on carpet or vinyl flooring,
the appliance shall be installed on a metal, wood or noncombustible
material panel extending full width and depth of the appliance.
Wall
Side Wall
Combustible
Material Area
1"
Fireplace
Opening
12” Max.
Depth
356O"
456O"
3"
45°
5"
6"
Top View
Combustible
Mantel
156O"
256O"
Figure 5 Mantel clearances.
FP1949
71” Minimum
Ceiling
mantel clearances
12” Max.
Combustible
Breastplate
8” Max.
14” Min.
From Opening
14”
Min.
10”
Min.
3/4"
Marble
756O”
Min.
6” Min.
to Opening
Eyebrow
Canopy
Figure 4 Side Wall and Ceiling Clearances
NOTE: When eyebrow canopy is used, minimum clearance to
combustibles is 2Z\v" maximum out from fireplace front at 7Z\x"
minimum from opening. Figure 5a. When eyebrow is not used,
clearances to combustibles
is 8" maximum out from fireplace
FP1987
front at 10" minimum
from
opening
or 12" maximum out from
clearances
fireplace front at 14" minimum from opening. Figure 5
156O”
Max.
256M” Max.
Figure 5a Mantel Clearance with Eyebrow Canopy
FP2916
Mantel Clearance
75D0004
SECURe FIREPLACE to floor or framing
MLDV Series Gas Fireplace
NOTE
The fireplace must be secured to the floor and/or to framing studs as shown in Figure 6. Use
two (2) wood screws or masonry/ concrete screws to secure fireplace to the floor. Use four (4)
screws to attach fireplace to framing. The side nailing flanges are 1/2" or 5/8" to accommodate
different wall thickness.
DO NOT REMOVE INSULATION
BOARD
Framing
Insulation Board
DO NOT REMOVE
Screws
Nailing Flange
Figure 6 Secure Fireplace to Floor and
Framing Studs
fp1989
Finishing Material
NOTE: Any remote wiring (i.e. remote control, wall switch, and optional fan) must be done
prior to final finishing to avoid costly reconstruction.
FP1989
install
Only noncombustible materials (i.e. brick, tile, slate,
steel, fireplace
or other materials with a UL fire rating of
Zero) may be used to cover the black painted face of the appliance. It is permissible to bring combustible wall board to the top and side edges of the black painted face. A 300°F minimum adhesive
may be used to attach facing materials to the black surface. If joints between the finished wall and
the fireplace surround are sealed, a 300°F minimum sealant material (General Electric RTV103 or
equivalent) must be used.
75D0004
VENTING INSTALLATION
MLDV Series Gas Fireplace
Read all instructions completely and
thoroughly before attempting installation.
Failure to do so could result in serious injury,
property damage or loss of life. Operation
of improperly installed and maintained
venting system could result in serious injury,
property damage or loss of life.
NOTICE
WARNING
Venting installation
Failure to follow these instructions
will void the warranty.
installation precautions
Consult local building codes before beginning the installation. The installer must make sure to select
the proper vent system for installation. Before installing vent kit, the installer must read this fireplace
manual and vent kit instructions.
Only a qualified installer/service person should install venting system. The installer must follow
these safety rules:
• Wear gloves and safety glasses for protection.
• Use extreme caution when using ladders or when on rooftops.
• Be aware of electrical wiring locations in walls and ceilings.
The following actions will void the warranty on your venting system:
• Installation of any damaged venting component.
• Unauthorized modification of the venting system.
• Installation of any component part not manufactured or approved by MHSC.
• Installation other than permitted by these instructions.
10
75D0004
Venting installation
MLDV Series Gas Fireplace
The appliance is shipped as a rear vent unit. If the installation layout requires the unit to be a top vent configuration,
the appliance can be converted by following the steps
below.
When removing and refitting the plates and adapter, be
sure the associated gaskets are undamaged and refitted
as required.
WARNING
OPTIONAL TOP VENT APPLICATION
After conversion to top vent configuration,
the 5" (127 mm) flue pipe should be
concentric with the 8" (203 mm) outer collar
within 1/4".
1. Remove the eight (8) screws securing the flue pipe
adapter to the fireplace body. Figure 7
2. Set the flue pipe adapter aside, complete with the
gasket. Do not damage the gaskets as the adapter and
gasket must be refitted.
Flue Cover
Screws
Screws
Flue Pipe
Cover
Flue Pipe
Figure 8 Remove Flue Pipe
Flue Pipe
Adapter
FP1992
FP1991
Figure 7 Remove 16 screws from Flue Pipe Adapter and
Flue Pipe Cover
3. Remove the eight (8) screws securing the flue pipe cover
to the top of the intake box and remove the cover and
gasket. Figure
7
FP1991
4. Remove six
(6) screws
remove
screwssecuring the flue pipe to the
back of the intake box and remove the pipe and gasket.
Figure 8
5. Replace the flue pipe to top of firebox. Ensure the gasket
is in place and undamaged. Secure with six (6) screws.
Figure 9
6. Place the flue pipe cover and gasket removed in Step
3 over the flue opening in bottom of the intake box.
7. Refit the flue pipe adapter and gasket to the top of fireplace. Secure the adapter with six (6) screws removed
in Step 1.
Flue Pipe
Screws
FP1992
remove flue pipe
FP1993
Figure 9 Attach Flue Pipe to Top Vent Configuration
11
75D0004
FP1993
replace flue pipe
Venting installation
Horizontal sections of this vent system
require a minimum of 3” clearances to
combustibles at the top of the flue and 1”
clearance at the sides and bottom until
the flue penetrates the outside wall. A
minimum 1” clearance all around the flue
is acceptable at this point of penetration. If
vertical rise is 7Z\x” feet or higher when top
venting, the clearance to combustibles is
1” on all sides of the horizontal run.
WARNING
WARNING
MLDV Series Gas Fireplace
Vertical sections of this vent system require
a minimum of 1” clearance to combustibles
on all sides of the pipe.
This fireplace must be vented to the
outside. The venting system must NEVER
be attached to a chimney serving a separate
solid fuel burning appliance. Each gas
appliance must use a separate vent system.
Do not use common vent systems.
* A minimum of 3" clearance to the top is required
along horizontal length until flue pipe penetrates
outside wall.
** A minimum 1" clearance to combustibles permitted
all around flue at outside wall
*3”
**1”
**1”
*3”
**1”
**1”
FP1990
Figure 10 Combustible Clearances for Vent Pipe
fP1990
vent pipe clearances
12
75D0004
MLDV Series Gas Fireplace
There are two basic types of direct-vent installation:
• Horizontal Termination
• Vertical Termination
It is important to select the proper length of vent pipe for
the type of termination you choose. It is also important to
note the wall thickness.
for horizontal termination
Select the amount of vertical rise desired. All horizontal run
of venting must have 1/4" rise for every 12" of run towards
the termination below 71/2 feet of vertical rise. With 71/2 feet
or more vertical rise off top of fireplace, the horizontal run
may run level. NEVER run vent piping downward.
You may use up to three 90° elbows in this vent configuration. Refer to Horizontal Termination Configurations on
Pages 17 and 18.
For vertical termination
Measure the distance from the fireplace floor to the ceiling. Add the ceiling thickness, the vertical rise in an attic
or second story, and allow for sufficient vent height above
the roof line.
Treatment of firestops and construction of
the chase may vary from building type to
building type. These instructions are not
substitutes for the requirements of local
building codes. You must follow all local
building codes.
When installing in a chase, you should
insulate the chase as you would the outside
walls of your home. This is especially
important in cold climates. Insulation should
be considered a combustible material.
Maintain proper clearances to all combustible
materials.
You may use a chase with a vent termination with exposed
pipe on the exterior of the house. Refer to Installing Vent
System in a Chase below. If pipe is enclosed in chase, it
is not exposed.
It is very important that the venting system maintain its balance between the combustion air intake and the flue gas
exhaust. Certain limitations apply to vent configurations
and must be strictly followed.
Installing a vent system in an
outside chase
WARNING
NOTE: You may use two 45° elbows in place of a 90° elbow.
You must follow rise to run ratios when using 45° elbows.
The appliance is approved for use with three 90° elbows
maximum or a combination of 90° and 45° elbows up to a
maximum of 270°.
For two-story applications, firestops are required at each
floor level. If an offset is needed in the attic, additional pipe
and elbows will be required.
Never run the vent pipe down. This may
cause excessive temperatures which could
cause a fire.
WARNING
installation planning
WARNING
Read all instructions completely and thoroughly before attempting installation. Failure
to do so could result in serious injury, property damage or loss of life. Operation of
improperly installed and maintained venting system could result in serious injury,
property damage or loss of life.
NOTICE
WARNING
Venting installation
Always maintain minimum clearances
around vent systems. The minimum
clearance to combustibles for horizontal
vent pipe are 3” at the top and 1” at the
sides and bottom of the vent system until
the pipe penetrates the nearest vertical
wall (1” required). A 1” minimum clearance
all around the pipe must be maintained at
outside wall and on vertical runs. Do not
pack the open air spaces with insulation
or other materials. This could cause high
temperatures and may present a fire
hazard.
*Unless the vertical run is 7Z\x feet or higher
(top vent units only), the clearances for the
horizontal run is 1” at the top.
A chase is a vertical boxlike structure built to enclose
venting that runs along the outside of a building. A chase
is required for such venting.
75D0004
13
MLDV Series Gas Fireplace
venting installation
General Venting Information - Termination Location
INSIDE CORNER DETAIL G V H A D L V E C V B F Figure 11 Horizontal Vent Termination Locations
B Fixed
Closed
Ope
rable
V B V B Operable
B B J X
X AIR SUPPLY INLET V K X AREA WHERE TERMINAL IS NOT PERMITTED Canadian Installations1
CFM145a DV Termin Location 5/01/01 Rev. 12/05/01 sta M I A CFM145a V VENT TERMINATION V V Fixed
Closed
US Installations2
A = Clearance above grade, veranda, porch, 12” (30 cm)
12” (30 cm)
deck, or balcony
B = Clearance to window or door that may be 6” (15 cm) for appliances 6” (15 cm) for appliances
opened
< 10,000BTU/h (3kW), 12” (30 cm) < 10,000 BTU/h (3kW), 9”
for appliances > 10,000 Btuh (3kW) and
(23 cm) for appliances > 10,000
< 100,000 BTU/h (30kW), 36” (91 cm)
Btuh (3kW) and < 50,000 BTU/h
for appliances > 100,000 BTU/h (30kW)
(15kW), 12” (30 cm) for
appliances > 50,000 BTU/h(15kW)
C = Clearance to permanently closed window
12” (305 mm) recommended to
12” (305 mm) recommended to prevent window condensation
prevent window condensation
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal 18” (458 mm)
18” (458 mm)
distance of 2’ (610mm) from the center
line of the terminal
E = Clearance to unventilated soffit
12” (305 mm)
12” (305 mm)
F = Clearance to outside corner see next page
see next page
G =Clearance to inside corner (see next page) see next page
see next page
H = Clearance to each inside of center line
3’ (91 cm) within a height of 15’ (5 m) 3’ (91 cm) within a height of 15’
extended above meter/regulator assembly
above the meter/regulator assembly
(5 m) above the meter/regulator
assy
I = Clearance to service regulator vent outlet
3’ (91 cm)
3’ (91 cm)
J = Clearance to nonmechanical air supply inlet 6” (15 cm) for appliances < 10,000
6” (15 cm) for appliances
to building or the combustion air inlet to any BTU/h (3kW), 12” (30 cm) for
< 10,000 BTU/h (3kW), 9”
other appliances
appliances > 10,000 BTU/h (3kW) and (23 cm) for appliances > 10,000
< 100,000 Btuh (30kW), 36” (91 cm)
BTU/h (3kW) and < 50,000 BTU/h
for appliances > 100,000 BTU/h (30kW)
(15kW), 12” (30 cm) for appliances > 50,000 BTU/h(15kW)
K = Clearance to a mechanical air supply inlet
6’ (1.83 m)
3’ (91 cm) above if within 10'
(3 m) horizontally
L = Clearance above paved sidewalk or paved 7’ (2.13 m)† 7’ (2.13 m)†
driveway located on public property
M =Clearance under veranda, porch, deck or
12” (30 cm) 12” (30cm)
balcony
1 In accordance with the current CSA-B149 Installation Codes
2 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel
Gas Codes
† A vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family dwellings and serves both dwellings
only permitted if veranda, porch, deck or balcony is fully open on a
minimum 2 sides beneath the floor:
14
NOTE: 1. Local codes or regulations may require different clearances.
2. The special venting system used on Direct Vent Fireplaces are certified as part of the appliance, with clearances tested and approved by the listing agency.
3. MHSC assumes no responsibility for the improper performance of the appliance when the venting system does not meet these requirements.
75D0004
venting installation
MLDV Series Gas Fireplace
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
Alcove Applications*
Inside Corner
Outside Corner
G=
Combustible
6" (152 mm)
G
Noncombustible
2" (51 mm)
V
C
V
E
O
F
Balcony with perpendicular side wall
Balcony with no side wall
Figure 12 Allowable
Venting
F=
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
V
D
C
E = Min. 6” (152 mm) for
non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls
O = 8’ (2.4 m) Min.
M
M
No.
of Caps DMin. CMax.
1
3’ (914 mm)2 x DActual
2
6’ (1.8 m)
1 x DActual
3
9’ (2.7 m)2/3 x DActual
4
12’ (3.7 m) 1/2 x DActual
V
V
P
M=
Combustible &
Noncombustible
12" (305 mm)
Combustible &
Noncombustible
M = 24" (610 mm)
P = 20” (508 mm)
584-15
DMin. = # of Termination caps x 3
CMax. = (2 / # termination caps) x DActual
*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specified for vinyl or
non-vinyl siding and soffits. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All mechanical air intakes within 10’ (1 m) of a
termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All gravity air intakes within 3’ (914 mm) of a termination cap must
be a minimum of 1’ (305 mm) below the termination cap.
How To Use The Vent Graph
1. Determine the height of the center of the horizontal vent pipe
exiting through the outer wall. Using this dimension on the
Sidewall Vent Graph below, locate the point intersecting with
the slanted graph line.
2. From the point of this intersection, draw a vertical line to the
bottom of the graph.
3. Select the indicated dimension, and position the fireplace in
accordance with same.
Example: If the vertical dimension from the floor of the fireplace
is 11' (3.4 m) the horizontal run to the face of the outer wall must
not exceed 14' (4.3 m).
Example: If the vertical dimension from the floor of the unit is
7’ (2.14 m), the horizontal run to the face of the outer wall must
not exceed 7' (2.1 m).
Sidewall Vent Graph showing the relationship between vertical and
horizontal dimensions for a Direct Vent flue system.
Dimensions in
Feet
eg: A
Vertical Dimension From the Floor of Unit to the
Center of the Horizontal Vent Pipe
The Vent Graph should be read in conjunction with the following
vent installation instructions to determine the relationship between
the vertical and horizontal dimensions of the vent system.
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
2 4 6 8 10 12 14 16 18 20
Horizontal dimension from the finished outside wall
to the center of the pipe on the fireplace
Figure 13 Rear Wall Venting GraphFP1952
75D0004
sidewall vent graph
15
MLDV Series Gas Fireplace
venting installation
REAR WALL VENT INSTALLATION (5" x 8" VENTING
ONLY)
When installed as a rear vent unit, this appliance may be vented directly to
a termination located on the rear wall behind the appliance. Only an MHSC
brand termination is allowed for this application.
• The maximum horizontal distance between the rear of the appliance
and the termination is 20" (508 mm). Figure 14
Female Locking
Lugs
NOTE: Horizontal runs of
vent must be supported every
three feet (914 mm). Use wall
straps for this purpose.
Male Slots
Maximum
20"
Figure 15 Rigid Vent Pipe Connections
Top View Flat Installation
Figure 14 - Rear Vent Application,
Maximum
Horizontal Distance
DVR584-600
vent no elbows
FP1953
• Only one 45Rear
degree elbow is allowed in these installations.
2/99
djt
rigid pipe
1. Rigid vent pipes and fittings have special twist-lock connections. Assemble
the desired combination
of pipe and elbows to the appliance adapter.
Twist-Lock Procedure: The female ends of the pipes and fittings have three (3) locking lugs (indentations). These lugs will slide straight into matching slots on the male end of adjacent pipes and
fittings. Push the pipe sections together and twist one section clockwise approximately one-quarter
turn until the sections are fully locked. Figure 15
NOTE: Sealant is not required to assemble fireplace venting. Do not use silicone sealant at
the inner flue exhaust connections.
101/2"
(267 mm)
2. Refer to venting and termination instructions for further instructions.
3. Locate and cut the vent opening in the
wall. For combustible walls first frame in
opening.
Combustible Interior Walls: Cut a 121/2"
Combustible Wall
x 101/2" hole through the interior wall.
101/2"
1
(267
mm)
Combustible Exterior Walls: Cut a 10 /2"
x 101/2" square hole through the exterior
wall frame. Figure 16
Noncombustible Walls: Hole opening
should be 81/2" (216 mm) in diameter.
4. The center of the hole should align with
the center line of the horizontal rigid vent
pipe end. Allow 1/4" minimum rise per foot.
Figure 16
81/2"
Noncombustible
(216 mm)
Wall
5. Apply a bead of non-hardening mastic
around the outside edge of vent cap. Position the vent cap in the center of hole on the
Figure 16 exterior wall with the word "UP" on the vent
Exterior Wall Framing Dimensions
cap facing up. Insure proper clearance of
16
FP1954
wall framing
FP1954
75D0004
MLDV Series Gas Fireplace
venting installation
REAR WALL VENT INSTALLATION (continued)
WARNING
1" to combustibles is maintained. Attach the vent cap with four (4)
wood screws supplied. Figure 17
NOTE: Replace the wood screws with appropriate fasteners for
Vent Cap
stucco, brick, concrete or other types of siding.
For vinyl siding, stucco or wood exterior, use vinyl siding standoffs
between vent cap and exterior wall for Simpson or Selkirk Terminations only. The vinyl siding standoff prevents excessive heat from
T
melting the vinyl siding material. NOTE: MHSC Termination does
HO
not require standoff. Bolt the vent cap to the standoff or wall. Apply
non-hardening mastic around outside edge of the standoff instead
of the vent cap assembly. Use wood screws provided to attach the
standoff. Figure 18
Apply Mastic to all
Four Sides
Wood Screw
6. Slide the stop over the vent pipe before connecting the horizontal
run to the vent cap. Figure 19
Figure 17 Install Horizontal Termination
7. Carefully move the fireplace with vent assembly attached toward
the wall and insert the vent pipe into the horizontal termination. The
pipe overlap should be a minimum of 11/4". Apply silicone to the outer
pipe connection. Fasten all vent connections with screws
provided.
FP1955
Do not recess
vent termination
into any
8. Slide the wall thimble against the interior wall surface and
horizontal
vent cap
attach with screws. Figure 19
wall. This will cause a fire hazard.
Cut Vinyl Siding Away
to Fit Standoff
Standoff #1250 or
5DT-VS
(Not required for
MHSC termination)
Apply Mastic
to all Four
Sides
Inerior Wall
Surface
Vent Cap
(Horizontal
Termination)
Firestop
Termination
T
HO
FP1956
Nut
FP1957
Bolt
Screw
Figure 19 Install Firestop on Horizontal Vent Pipe
Wood Screw
must use MHSC-designed 5 x 8 square termination. No other manufacturer's termination is
pemitted in this application.
75D0004
FP1957
vent cap w hor pipe
NOTICE
notice
Figure 18 Install Simpson/Selkirk Vinyl Siding Standoff and
Termination
FP1956
All rearvinyl
ventsiding
through-the-wall applications
Horizontal
Vent Pipe
For more information, follow instructions
provided with terminations.
17
MLDV Series Gas Fireplace
venting installation
HORIZONTAL WITH VERTICAL RISE (THROUGH-THE-WALL)
TERMINATION CONFIGURATIONS
Since it is very important that the venting system maintain its balance between the combustion air intake and the flue gas exhaust, certain limitations as to vent configurations apply
and must be strictly adhered to.
The Vent Graph, showing the relationship between vertical and horizontal side wall venting, will help
to determine the various dimensions allowable. Figure 13
Minimum clearance between vent pipes and combustible materials is 3" on top and 1" from bottom
and sides unless otherwise noted (Exception: Outside wall with firestop: 1" all around pipes are
allowed). If the vertical run is 71/2 feet or more, off the top of the fireplace, the clearance is 1" on all
sides of the horizontal run.
When vent termination exits through foundations less than 20" below siding outcrop, the vent pipe
must be flush with the siding.
The horizontal vent run refers to the total
length of vent pipe from the flue collar
of the fireplace (or the top of the Transition Elbow) to the face of the finished
outside wall or the mounting flange of
the termination.
WARNING
It is best to locate the fireplace in such a way that minimizes the number of offsets and horizontal
vent length.
When installing the appliance as a rear vent unit, the 90° or
45° transition elbow attached directly to the rear of the unit
is NOT INCLUDED in the following criteria and calculations
and, unless specifically mentioned, should be ignored when
calculating venting layouts.
• The maximum number of 90° elbows per side wall installation is three (3). Figure 20
• If a 90° elbow is fitted directly on the top of the fireplace, the maximum horizontal vent run before
the termination or a vertical rise is 36” (914 mm). Figure 21
3 x 90°
Elbows
36"
(914 mm)
Max.
36"
(914 mm)
Max.
3 x 90°
Elbows
FP1177
Figure 21 Maximum Horizontal Run with
No Rise
FP1176
Figure 20 Maximum Three (3) 90° Elbows Per Installation
FP1176
max 90 bends
18
Max 20"
75D0004
venting installation
MLDV Series Gas Fireplace
90°
HORIZONTAL (THROUGH-THE-WALL) TERMINATION CONFIGURATION (continued)
• If a 90° elbow is used in the horizontal vent run (level height
A
maintained) the horizontal vent length is reduced by 36".
Figure 23. This does not apply if the 90° elbows are used to
increase or redirect a vertical rise. Figure 22
B
Example: According to the vent graph (Page 17) the maximum
horizontal vent length in a system with a 7.5' vertical rise is 20’
(6 m) and if a 90° elbow is required in the horizontal vent it must
be reduced to 17' (5.2 m).
In Figures 22 and 23 dimension A plus B must not be greater
than 17' (5.2 m).
• The maximum number of 45° elbows permitted per side wall
installation is two (2). These elbows can be installed in either
the vertical or horizontal run.
• For each 45° elbow installed in the horizontal run, the length
of the horizontal run MUST be reduced by 18" (457 mm).
This does not apply if the 45° elbows are installed on the
vertical part of the vent system.
• The maximum number of elbow degrees in a system is 270°.
Figure 24
7'6"
FP1958
Figure 22 Horizontal Run Reduction
A
7'
10'
B
Example:
Elbow 1 = 90°
FP1958
Elbow 2 = 45°
Horizontal run
Elbow
3 = 45°
reduction
Elbow 4 = 90°
Total Angular Variation = 270°
Horizontal 90° Elbow = 3' Reduction
1
7'6"
A + B = 17' Maximum
2
3
4
1
2
3
4
FP1959
Figure 23 Maximum Vent Run with Elbows
1 + 2 + 3 + 4 = 270°
FP1180
Figure 24 Maximum Elbow Usage
75D0004
19
MLDV Series Gas Fireplace
venting installation
Horizontal with vertical rise (through-the-wall) applications
1. Locate and cut the vent opening in the wall. For
combustible walls first frame in opening.
101/2"
(267 mm)
Combustible Interior Walls: Cut a 12Z\x"H x
10Z\x" W hole through the interior wall.
Combustible Exterior Walls: Cut a 10Z\x"H
x 10Z\x"W square hole through the exterior
wall frame. Figure 25
Noncombustible Walls: Hole opening should
be 8Z\x" (216 mm) in diameter.
2. The center of the hole should line up with the
center line of the horizontal rigid vent pipe end.
Allow 1/4" minimum rise per foot. Figure 25
WARNING
You may use a reducer from 5" x 8" to 4" x
6B\," or 4" x 7" for horizontal with vertical rise
applications. ONLY use framing instructions
below when using 4" x 6B\," or 4" x 7"
venting.
If the reducer is installed at the rear of the
unit, you must immediately follow with a 90
elbow for a vertical rise before continuing
with any horizontal run. There is a minimum
total height of 7 feet from the fireplace floor
to the last section of pipe before horizontal
run. Refer to graph on Page 17.
101/2"
(267 mm)
Combustible
Wall
81/2" Noncombustible
Wall
(216 mm)
FP1954
Figure 25 ExteriorFP1954
Wall Framing Dimensions for 5" x 8"
wall framing
NOTE: #1222DA reducer must be used when 4x6B\,"
venting is preferred. The 7TDVP58 reducer must be
used when 4" x 7" venting is preferred. Reducer must
be installed directly onto unit at the fireplace collar
before vertical rise.
1. Locate and cut the vent opening in the wall. For combustible walls first frame in opening.
Combustible Interior Walls: Cut a 11Z\x"H x 9Z\x" W
hole through the interior wall.
Combustible Exterior Walls: Cut a 9Z\x"H x 9Z\x"W
91/2"
square hole through the exterior wall frame. Figure 26
(241 mm)
Noncombustible Walls: Hole opening should be 7Z\x"
(190 mm) in diameter.
2. The center of the hole should line up with the center line
of the horizontal rigid vent pipe end. Allow 1/4" minimum
rise per foot. Figure 26
91/2"
(241 mm)
Combustible
Wall
71/2" Noncombustible
Wall
(190 mm)
FP1954
Figure 26 Exterior Wall Framing Dimensions
FP1954
for 4" x 65/8" or 4" x 7"
wall framing
20
75D0004
venting installation
MLDV Series Gas Fireplace
Below Grade Installations
When it is not possible to meet the required vent terminal clearances of 12" above grade level, a
snorkel kit is recommended. It allows installation depth down to 7" (178 mm) below grade level.
The 7" (178 mm) is measured from the center of the horizontal vent pipe as it penetrates through
the wall.
Ensure that sidewall venting clearances are observed. If venting system is installed below
ground, we recommend a window well with adequate and proper drainage to be installed
around the termination area.
If installing a snorkel, a minimum 24" vertical rise is necessary. The maximum horizontal run with
the 24” vertical pipe is 36". This measurement is taken from the collar of the fireplace (or transition
elbow) to the face of the exterior wall. Refer to the Sidewall Venting Graph for extended horizontal
run if the vertical exceeds 24".
WARNING
1. Establish vent hole through the wall.
• Do not back fill around snorkel.
2. Remove soil to a depth of approximately 16" below
• A clearance of at least 4” must be maintained
base of snorkel. Install drain pipe. Install window well
between the snorkel and the soil.
(not supplied). Refill hole with 12" of coarse gravel
leaving a clearance of approximately 4" below snorkel.
Figure 27
3. Install vent system.
4. Ensure a watertight seal is made around the vent pipe coming through the wall.
5. Apply high temperature sealant caulking (supplied) around the 5" and 8" snorkel collars.
6. Slide the snorkel into the vent pipes and secure to the wall.
7. Level the soil so as to maintain a 4" clearance below snorkel. Figure 27
If the foundation is recessed, use recess brackets (not supplied) for securing lower portion of the
snorkel. Fasten brackets to wall first, then secure to snorkel with self drilling #8 x 1/2 sheet metal
screws. It will be necessary to extend vent pipes out as far as the protruding wall face. Figure 28
Screws
Firestop
Minimum
4" Clearance
Ground
Snorkel
Foundation
Recess
Window Well
12"
Minimum
Wall Screws
Gravel
Drain
Watertight Seal
Around Pipe
Sheet Metal
Screws
Foundation Wall
FP1966
FP1965
Figure 27 Below Grade Installation
FP1965
below grade install
75D0004
Figure 28 Snorkel Installation, Recessed Foundation
FP1966
snorkel
21
MLDV Series Gas Fireplace
venting installation
Install restrictor disc as shown in Figure 29 for vertically vented applications.
Up to two (2) restrictor discs may be needed for 40' installation.
The two (2) restrictor discs suppled will work for most installations.
If a third disc is needed order Part No. 56D3027.
NOTICE
vertical through-the-roof applications
A restrictor disc must be installed on
any vertical termination that is higher
than 12'.
You may use a reducer to 4" x 6B\," or 4" x 7" in vertically vented
applications. If a reducer is used, only one restrictor may be used.
Restrictor Disc
Fireplace Collar
Figure 29 Install Restrictor Disc into Fireplace Collar
FP1967
FP1967
restrictor disc
22
75D0004
venting installation
MLDV Series Gas Fireplace
vertical (through-the-roof) applications (continued)
This Gas Fireplace has been approved for,
• Vertical installations up to 40' (12 m) in height. Up to a 10' (3 m) horizontal vent run can be installed
within the vent system using a maximum of two 90° elbows. Figure 30
40' Max. Height
8' Min. Height
10'
Maximum
10'
Maximum
40' Max. Height
8' Min. Height
Support Straps
Every 3'
Support Straps
Every 3'
FP1183
Figure 30 Support Straps for Horizontal Runs
• Up to two 45° elbows may be used within the horizontal
run. For each 45° elbow used on the horizontal plane,
the maximum horizontal
length must be reduced by
FP1183
18" (450 mm).
max height
Example: Maximum horizontal length
No elbows = 10’ (3 m)
1 x 45° elbows = 8.5’ (2.6 m)
2 x 45° elbows = 7’ (2.1 m)
1
2
3
4
• A minimum of an 8' (2.5 m) vertical rise is required.
• Two sets of 45°elbows offsets may be used within the
vertical sections. From 0 to a maximum of 8' (2.5 m)
of vent pipe can be used between elbows. Figure 31
• Determine the roof pitch and use the appropriate
starter kit for offset installation.
• The maximum angular variation allowed in the system
is 270°. Figure 31
• The minimum height of the vent above the highest
point of penetration through the roof is 2' (610 mm).
1
2
Example:
Elbow 1 Elbow 2 Elbow 3 Elbow 4 Total Angular Variation = 90°
= 45°
= 45°
= 90°
= 270°
3
4
Figure 31 Maximum Elbow Usage
FP1179
max bends
75D0004
23
MLDV Series Gas Fireplace
venting installation
installation for vertical termination
1. Determine the route your vertical venting will take. If ceiling joist,
roof rafters or other framing will obstruct the venting system, consider an offset. Refer to Figure 32 to avoid cutting load bearing
members.
NOTE: Pay special attention to these installation instructions for
required clearances (air space) to combustibles when passing through
ceilings, walls, roofs, enclosures, attic rafters, etc. Do not pack air
spaces with insulation. Also note maximum vertical rise of the venting
system and any maximum horizontal offset limitations. Offsets must
fall within the parameters shown on Page 17, Figure 13.
Roof
Flashing
Wall Strap
45° Elbows
2. Set fireplace in desired location. Drop a plumb line down from the
ceiling to the position of the flue exit. Mark the center point where
the vent will penetrate the ceiling. Drill a small locating hole at this
point.
Drop a plumb line from the inside of the roof to the locating hole
in the ceiling. Mark the center point where the vent will penetrate
the roof. Drill a small locating hole at this point.
flat ceiling installation
1. Cut a 10Z\x" (267 mm) square hole in the ceiling using the locating
hole as a center point The opening should be framed to 10Z\x" x
10Z\x" (267 x 267 mm) inside dimensions as shown in Figure 34
using framing lumber the same size as the ceiling joist. If the area
above the ceiling is an insulated ceiling or a room, nail firestop
from the top side. This prevents loose insulation from falling into
the required clearance space. Figure 34. Otherwise, install firestop
below the framed hole. The firestop should be installed with no
less than three (3) nails per side. Figure 34.
2. Assemble the desired lengths of pipe and elbows necessary to
reach from the burner system flue up through the firestop. Be sure
pipe and elbow connections are fully twist-locked. Page 18, Figure
15.
3. Cut a hole in the roof using the locating hole as a center point.
(Cover any exposed open vent pipes before cutting hole in roof).
The 10Z\x" x 10Z\x" (267 x 267 mm) hole must be measured on the
horizontal. Actual length may be larger depending on the pitch of
the roof. There must be a 1" minimum clearance from the vent
pipe to combustible materials. (Insulation should be considered
a combustible material). Frame the opening as shown on Page
18, Figure 16.
4. Connect a section of pipe and extend up through the hole.
NOTE: If an offset is needed to avoid obstructions, you must support
the vent pipe every three (3) feet. Use wall straps for this purpose.
Refer to Page 26, Figure 32. Whenever possible, use 45° elbows
instead of 90° elbows. The 45° elbow offers less restriction to the
flow of the flue gases and intake air.
FP1669
Ceiling Firstop
Figure 32 Offset with Wall Strap and 45° Elbows
FP1969
offset w/ wallstrap
Nails
Firestop
FP1969
Figure 33 If Area Above is a Room, Install Firestop
above Framed Hole as Shown
101
1 2"
/2"
0/
1
FP1969
firestop w room above
FP1970
Nails
Firestop
Figure 34 If Area Above is Not a Room, Install Firestop
above Framed Hole as Shown
24
FP1970
firestop no room
75D0004
venting installation
MLDV Series Gas Fireplace
installation for vertical termination - Flat Ceiling installation (continued)
5. Place the flashing over the pipe section(s) extending through the roof. Secure the base of the
flashing to the roof and framing with roofing nails. Be sure roofing material overlaps the top
edge of the flashing. There must be a 1" clearance from the vent pipe to combustible materials.
6. Continue to add pipe sections until the height of the vent cap meets the minimum requirements
below.
NOTE: You must increase vent height for steep roof pitches. Nearby trees, adjoining roof lines,
steep pitched roofs, and other similar factors may cause poor draft or down-drafting in high winds.
Increasing the vent height may solve this problem.
NOTE: If the vent pipe passes through any occupied areas above the first floor, including
storage spaces and closets, you must enclose pipe. You may frame and sheetrock the enclosure
with standard construction material. Make sure to meet the minimum allowable clearances to
combustibles. Do not fill any of the required clearance spaces with insulation. Horizontal Overhang
2 ft.
Min.
Vertical Wall
2 ft. Min.
H (feet)
Flat to 6/12
1.0
Over 6/12 to 7/12
1.25
Over 7/12 to 8/12
1.5
Over 8/12 to 9/12
2.0
Over 9/12 to 10/12
2.5
Over 10/12 to 11/12
3.25
Over 11/12 to 12/12
4.0
*H = Minimum height from roof to lowest
discharge oopening of vent.
Lowest
Discharge
Opening
Termination
Vent
H*
ROOF PITCH
12
X
Storm Collar
FP1971
Flashing
1" Minimum Clearance to
Combustibles
Concentric
Vent Pipe
Figure 35 Minimum Chimney Clearance
FP1971
Min chimney clearance
75D0004
25
MLDV Series Gas Fireplace
Flex vent installation
1. Flexible UL1777 listed venting may be used in any
venting application where rigid direct vent components
can be used. All restrictions, clearances and allowances that pertain to the rigid piping apply to the
flexible venting. Flex kits may not be modified. Flex
kits may be added to the end of a vent run made of rigid
vent sections using pipe manufacturer's approved flex
to pipe adapters. This may occur only if doing so does
not violate any of the venting length, height, routing,
horizontal to vertical ratio requirements or clearance
considerations detailed in this manual.
5" x 8" Flex Vent Pipe
2. The flex adapter starter kit (DVFF8A/8) is used to attach
flex venting to the appliance starting collar. It includes
5" inner and 8" outer adapter rings. Figure 36
• The inner and outer adapter rings are required to
start all flex runs.
• Never install damaged or torn flexible venting.
• Over tightening clamps may rip, tear, or otherwise
damage flexible venting.
• The adapter kit does not include individual pipe sections which may be purchased separately. (UL1777
listed type venting only.)
3. Start the flexible vent as follows:
A. Installing the inner flex adapter and pipe. Figure 36
UL1777
Flex Vent
1C\v" Flexible
Pipe and Adapter
Outer
Pipe
Clamps
DVFF8A/8
Inner Adapter
Outer Adapter
Screws
(3 places,
equidistant just
above gear
clamp)
Appliance
Starting Collar
FP1972
NOTE
Figure 36 Typical Appliance Connection
26
F l e x v eFP1972
nt pipe spacers: Refer to
manufacturer’s
specifications
appliance
connection for correct
positioning of the spacer springs to
maintain proper distance between inside
and outside pipe.
1. Insert the long side of the 5" inner ring into
exhaust pipe, gently tap to seat into place, and
secure with screws.
2. Slide the small gear clamp over the inner flexible
vent pipe, and push out of the way.
3. Pull and extend the inner flexible vent.
4. Slide the inner vent onto the adapter collar, for a
minimum 1C\v" overlap.
5. Locate the clamp at approximately 3/4" from the
flex end and tighten.
6. Secure the clamped inner section with three selftapping screws, drilled equidistant, just above the
clamp perimeter.
B. Installing the outer flex pipe. Figure 36
1. Firmly insert the 8" outer adapter ring into the
outer appliance starting collar and secure with
screws.
2. Slide the large gear clamp over the outer flexible
vent pipe, and push out of the way.
3. Pull and extend the outer flexible vent.
4. Slide the outer vent onto the appliance collar outer
adapter for a minimum 1C\v" overlap.
5. Locate the clamp at approximately 3/4" from the
flex end and tighten.
6. Secure the clamped outer section with three selftapping screws, drilled equidistant, just above the
clamp perimeter.
C.Routing UL1777 flex pipe.
1. Always maintain the required clearance when
routing the flex vent assembly.
2. Install firestop spacers, Figure 38, when penetrating ceiling, attic spaces, or walls.
3. Do not allow the flexible vent to bend in radius
tighter than 5" (127 mm). Figure 37
4. Horizontal runs UL1777
of flexible vent Flex Vent
shall be supported at maximum 2 foot
intervals; vertical runs, five
5° Radius
feet intervals.
Metal strapFP1973
ping, properly
secured, is an Figure 37 a c c e p t a b l e Minimum Radius for Flex
means to sup- Vent Section
FP1973
port the flexible
flex pipe bend
vent.
5. Flexible vent spacers are to be installed at intervals prescribed by the flexible vent manufacturer;
and in such a way as to maintain concentric inner
and outer vent spacing.
75D0004
MLDV Series Gas Fireplace
flex vent installation
D.Attaching flexible venting to vertical termination
assemblies.
1. When using Simpson pipe, an MHSC flex-to-pipe
adapter and/or rigid pipe section(s) is required to
connect the flexible vent assembly to the vertical termination by using three self-penetrating
screws.
2. Review Figure 39 and corresponding instructions for proper overlap, clamp and screw placement.
3. Three each self-penetrating screws are drilled
opposite one another and below the gear
clamp.
4. Use only listed and approved terminations and
accessories, installed per the installation instructions and Figure 38.
Termination
Cap
Flashing
Storm Collar
Roof Support
Rigid Pipe
Length
E. Installing flexible venting to horizontal termination
assemblies.
1. Connect the 5" flexible vent to the horizontal
termination as in Figure 40.
2. Connect the 8" flexible vent to the termination
ring as in Figure 40.
3. Review Figure 40 for proper overlap and clamp
placement.
4. Three each self-penetrating screws are drilled
opposite one another and below the gear lamp.
5. Use only listed an approved terminations and
accessories, installed per the termination instructions and Figure 40.
Rigid Pipe Length
Screws
(3 Places
equidistant
just above
gear clamp)
Flex to Pipe Adapter
Gear Clamp
1C\v" Flexible Pipe and Adapter
Outer Collar Overlap
Flex to Pipe
Adapter
Gear
Clamp
Firestop
UL1777 Flex Vent
Figure 39 FP1975
Typical Pipe Connection
pipe connection
UL1777 Flex
PIpe
Screws
(3 Places equidistant just
above gear clamp)
DVFF8A/8 5" x 8" to
5" x 8" Flex Adapter
UL1777 Flex Vent
FP1974
Figure 38 Typical Vertical Flex Vent Installation
75D0004
MHSC Horizontal
Vent Termination
Gear Clamp
1C\v" Flexible Pipe and
Collar Overlap
Figure 40 Typical Horizontal Flex Vent Installation
FP1976
horizontal flex
27
MLDV Series Gas Fireplace
FLEX vent installation
4" x 7" Flex Pipe
If you prefer to use 4" x 7" flex pipe, you must install model
7TDVP58 reducer (5" x 8" to 4" x 7") onto the fireplace
collar. Then follow the assembly guidelines for 5" x 8" flex
venting.
UL1777
Flex Vent
1C\v" Flexible Pipe and
Adapter Outer
5" x 8" to 4" x 7"
Adapter (7TDVP58)
Gear Clamp
Screws
(3 places,
equidistant just
above gear
clamp)
Appliance
Starting Collar
Figure 41 Typical 4" x 7" Appliance Connection
FP1972a
FP1972
appliance connection
Termination
Cap
Flashing
Storm Collar
Roof Support
Rigid Pipe
Length
Screws
(3 Places
equidistant
just above
gear clamp)
Flex to Pipe Adapter
(DVFFA/8)
Gear Clamp
1C\v" Flexible Pipe and Adapter
Outer Collar Overlap
Flex to Pipe
Adapter
(DVFFA/8)
Firestop
4" x 7"
Rigid Pipe Length
Gear
Clamp
UL1777 Flex Vent
Figure 43 FP1975
Typical Pipe Connection
4 x 7 pipe connection
UL1777 Flex
PIpe
MHSC Horizontal
Vent Termination
Screws
(3 Places equidistant just
above gear clamp)
7TDVP58 5" x 8" to
4" x 7" Reducer
UL1777 Flex Vent
FP1974
Figure 42 Typical Vertical Flex Vent Installation
28
Gear Clamp
1C\v" Flexible Pipe and
Collar Overlap
Figure 44 Typical Horizontal Flex Vent Installation
FP1976
horizontal flex
75D0004
fireplace installation
MLDV Series Gas Fireplace
check gas type
Use proper gas type for the fireplace you are installing. If you have conflicting gas type, do not install
fireplace. See dealer where you purchased the fireplace for proper fireplace for your gas type or
conversion kit.
A qualified installer or service person must
connect appliance to gas supply. Follow
all local codes.
CAUTION
WARNING
Installing gas piping to fireplace / burner system location
For propane/LP units, never connect fireplace
directly to the propane/LP supply. This
burner system requires an external regulator
(not supplied). Install the external regulator
between the burner system and propane/LP
supply.
installation items needed
Before installing fireplace and burner system, make sure you have the items listed below.
•External regulator (supplied by installer) • Piping (check local codes)
• Sealant (resistant to propane/LP gas)
• Equipment shutoff valve*
• Test gauge connection*
•Sediment trap (recommended)
•Tee joint
• Pipe wrench
•approved flexible gas line with gas connector (if allowed by local codes — not provided)
* A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge
connection. Purchase the CSA design-certified equipment shutoff valve from your dealer.
External
Regulator
100 gallon (min)
Propane/LP Supply
Tank
CAUTION
For propane/LP connections only, the installer must supply an external regulator. The external regulator will reduce
incoming gas pressure. You must reduce incoming gas pressure to between 11 and 13 inches of water. If you do
not reduce incoming gas pressure, burner system regulator damage could occur. Install external regulator with
the vent pointing down as shown in Figure 45. Pointing the vent down protects it from freezing rain or sleet.
Use only new black iron or steel pipe. Internally
tinned copper or copper tubing can be used
per National Fuel Code, Section 2.6.3, providing
gas meets hydrogen sulfide limits, and where
permitted by local codes. Gas piping system
must be sized to provide minimum inlet
pressure (listed on data plate) at the maximum
flow rate (BTU/hr). Undue pressure loss will
occur if the pipe is too small.
Vent Pointing
Down
When using copper of flex connectors use only fittings
approved for gas connections. The gas control inlet is
3/8" NPT.
Figure 45 External Regulator with Vent Pointing Down
(Propane/LP Only)
FP1977
external regulator
75D0004
29
fireplace installation
Only persons licensed to work with gas
piping may make the necessary gas
connections to this appliance.
CAUTION
WARNING
MLDV Series Gas Fireplace
A manual shutoff valve must be installed
upstream of the appliance. Union tee and
plugged 1/8” NPT pressure tapping point
should be installed upstream of the appliance.
Figure 46
NOTE : The gas line connection may be made using 1/2" rigid tubing or an approved flex connector.
Since some municipalities have additional local codes it is always best to consult your local authorities
and the current edition of the National Fuel Gas Code ANSI.Z223.1, NFPA54. In Canada CSA-B149 (1
or 2) Installation Code.
A listed manual shutoff valve must be installed upstream of the appliance. Union tee and plugged 1/8"
NPT pressure tapping point should be installed upstream of the appliance. Figure 46
IMPORTANT: Install main gas valve (equipment shutoff valve) in an accessible location. The main gas
valve is for turning on or shutting off the gas to the fireplace.
CAUTION
Check your building codes for any special requirements
for locating equipment shutoff valve to fireplaces.
Apply pipe joint sealant lightly to male threads. This will
prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged burner system valves
Use pipe joint sealant that is resistant to liquid
petroleum (LP) gas.
We recommend that you install a sediment trap/drip leg
in supply line as shown in Figure 46. Locate sediment
trap/drip leg where it is within reach for cleaning. Install in piping system between fuel supply and burner
system. Locate sediment trap/drip leg where trapped matter is not likely to freeze. A sediment trap collects
moisture and contaminants and keeps them from going into the burner system gas controls. If sediment
trap/drip leg is not installed or is installed wrong, burner system may not run properly.
CSA Design-Certified Equipment
Shutoff Valve with 1/8" NPT Tap*
Approved Flexible
Gas Line
Natural Gas
From Gas Meter
(4.5" w.c. to 10.5" w.c. Pressure)
Propane/LP
From External Regulator
(11" w.c. to 13" w.c. Pressure)
Tee Joint
Sediment Trap/Drip Leg
Pipe Nipple
Cap
3"
Mi
nim
um
Figure 46 Gas Connection
FP1978
gas connection
30
75D0004
Millivolt - CHECKING GAS PRESSURE and Electrical installation
MLDV Series Gas Fireplace
WARNING
1. Check gas type. The gas supply must be the same
as stated on the appliance’s rating decal. If the gas
supply is different from the fireplace, STOP! Do not
install the appliance. Contact your dealer immediately.
2. To ease installation, a 24" (610 mm) flex line with
manual shut-off valve has been provided with on
this appliance. Install and attach 1/2" gas line onto
shut-off valve.
3. After completing gas line connection, purge air from
Pressure
gas line and test all gas joints from the gas meter Test “IN”
to the fireplace for leaks. Use a solution of 50/50
water and soap solution or a gas sniffer.
Pressure
4. To adjust flame height, turn HI/LO knob to HI to get Test “OUT”
FP1979
maximum pressure to burner. Turn HI/LO knob to
HI/LO Knob
LO to get minimum pressure.
Pilot Adjustment Screw
5. To check gas pressures at valve, turn captured
screw counter clockwise 2 or 3 turns and then place
Figure 47 tubing to pressure gauge over test point. Turn unit
Gas Pressure Check at Gas Valve
to high. Figure 47 After taking pressure reading,
be sure and turn captured screw clockwise firmly
FP1979
to reseal. Do not over torque. Check test points for gas
leaks.
Millivolt gas valve
Do not use open flame to check for
gas leaks.
Electrical Wiring
This fireplace will work without any electrical supply. Electricity is only needed to operate
blower.
Electrical connections should only be performed
by a qualified, licensed electrician. Main power
must be off when connecting to main electrical
power supply or performing service. All wiring
shall be in compliance with all local, city and
state codes. The appliance, when installed, must
be electrically grounded in accordance with
local codes or in the absence of local codes,
with the National Electrical Code ANSI/NFPA 70
(latest edition) and Canadian Electrical Code,
CSA C22.1.
CAUTION
WARNING
NOTE: If installed in mobile home, fireplace must be bolted securely to floor.
Label all wires before disconnecting when
servicing controls. Wiring errors can cause
improper and dangerous operation.
Verify proper operation after servicing.
75D0004
31
MLDV Series Gas Fireplace
REMOTE WALL SWITCH INSTALLATION
Remote Wall mounted Switch
OPTIONAL REMOTE
WALL SWITCH
ON
OFF
PILOT
HI
ON
A remote wall switch and up to fifteen (15) feet of 18
Ga. wire may be used with this appliance. Attach the
wall switch in a junction box at the desired location
on the wall. Figure 48. Do not extend beyond the wall
switch wire length provided.
LO
TH
TP
TH/TP
ON
OFF
RS
OFF
WARNING
NOTE: Extended lengths of wire may cause the
fireplace not to function properly. Longer length
of wire is permitted if the wire is made out of
larger gauge (diameter) wire. Always check with
local code.
Do not connect wall
switch 110V circuit.
OPTIONAL FAN/BLOWER SYSTEM
(BLOTBLDV)
Installation Instructions
Wiring
OPTIONAL REMOTE
WALL SWITCH
ON
OFF
Figure 48 Wiring Diagram for Wall Switch
FP1980
Dv wiring diagram
120V AC
60Hz
Factory Supplied
Not Supplied
Figure 49 1. Before installing the blower, wire the receptacle into an elec- Junction Box
Junction Box Wiring Diagram
trical circuit. This should be done before framing the fireplace.
Wire with minimum 60° C wire in accordance with prevailing
codes.
2. Remove the external junction box cover by removing the
FP1912
screw from the left side of the outside firebox wall. Junction box was installed at the factory.
JunctionAfter
boxconnecting
wiring
3. The junction box cover has a factory installed “romex” style strain relief connector.
the wires, route the wire leads through this connector. Refer to the wiring8/08
diagram in Figure 49.
Before Installing the Blower
1. Always turn off the gas supply and allow the unit to cool down before proceeding.
2. Clean the inside of the firebox (wall and floor), where the blower and wires will be installed. Make
sure the firebox wall and floor are clean and dry before mounting the blower.
Installing the Blower
1. Remove the lower access panel by pulling up and away from unit.
2. Remove glass frame by releasing the two (2) latches (500 Model has three (3) latches) below the
firebox opening and lifting glass frame up and away from unit.
3. Remove logs.
4. Remove grate from engine by lifting up.
5. Remove hearth brick and wall brick panels.
6. Disconnect the gas line to the valve.
7. Remove screws securing engine base to firebox floor and lift engine up to remove.
8. Two (2) magnetic strips have been supplied to secure each blower to the firebox floor. Place on bottom of each blower before installing. Figure 50
9. The blowers are to be inserted flat through the engine cutout in the firebox floor. Slide each blower
over to the sidewall location. Figure 51
32
75D0004
OPTIONAL FAN/BLOWER SYSTEM
MLDV Series Gas Fireplace
Magnet
KT503
Figure 50 Magnet Installation
10.Turn blowers with discharge vent facing up. Slide the discharge
vent so that it is facing up. Slip discharge vent flange under the
KT503the sidewall. Slide blower side tabs
Figure 51 flange bracket flush against
magnets
Blower Installation
over into side flange.blower
Figure 52.
The blower is now locked in
place.
11/08
11. Attach the speed control to the unFP1981
Start Position
derside of the firebox using the supblower install
plied velcro, locating as far to the
right or left as possible.
12. The thermal sensor clip is located
beneath the firebox floor near the
center. Slide the thermal sensor into
the clip until it snaps in place. Make
sure the terminals on the thermal
sensor are perpendicular to the clip.
Figure 53
KT505
WARNING: It is important to arrange the
blower wire harness so the wires
Figure 52 can not come in contact with blower
Blower Installation Position
fan blades.
13. Connect wiring according to the wiring diagram Figure 55.
Clip
Installed
Position
KT505
install blower
Thermal
Sensor
Figure 53 Thermal Sensor Installation
14. Replace engine in reverse order of removal.
Figure 54 Location of White Dial on Speed Control
15. Plug in the blower.
16. Re-install firebrick, grate, logs, and glass door in reverse order of removal.
17. To test blower operation, set the variable speed blower on the LOW setting. Turn the fireplace on high.
The blower should turn on within 10 minutes.
18. If the blower does not turn on, turn the fireplace off and allow cooling. Unplug the blower. Using a jeweler’s
style screwdriver, turn the white dial on the side of the variable speed control 1/8 turn counterclockwise.
Figure 54. This will allow the blower motor to start at the low speed setting as the fireplace cycles on and
off. Retest the blower.
75D0004
33
MLDV Series Gas Fireplace
OPTIONAL FAN/BLOWER SYSTEM
Finishing
1. Re-install the lower access panel.
2. To use the blower, turn the knob on the speed control clockwise. The blower should be operating at
the highest speed. Continue to turn the knob until it reaches the desired speed.
NOTE: Some older units are not equipped with mounting brackets. Velcro and magnets are used to
mount blowers to sidewall and floor.
Variable
Fan Control
1
110/115V AC
Blower Plug
2
Thermal
Sensor
ON
White
(Hi Temp)
OFF
White
(Hi Temp)
Black
White
Green
Blower
Motor
Blower
Black
Motor
White
Figure 55 Blower Wiring Diagram
WARNING
FP1910
34
blower
wiring diagram
Electrical Grounding Instructions:SC
This
appliance
is
8/08
equipped with a three-prong (grounding) plug for
your protection against shock hazard and should
be plugged directly into a properly grounded three
prong receptacle.
75D0004
OPERATING INSTRUCTIONS (Milli-volt)
MLDV Series Gas Fireplace
WARNING
for your safety read before lighting
If you do not follow these instruction
exactly, a fire or explosion may result
causing property damage, personal
injury or loss of life.
A. This appliance is equipped with a pilot which must be lit with built-in piezo ignitor while following
these instructions exactly.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to
the floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
• Turn off all gas to the appliance.
• Open windows.
• Do not attempt to light any appliance.
• Do not touch any electric switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in, or turn the gas control knob. Never use tools. If the knob will
not push in or turn by hand, don't try to repair it. Call a qualified service technician. Force or
attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part of it has been under water. Immediately call a qualified
service technician to inspect the appliance and to replace any part of the control system and
any gas control that has been under water.
WARNING
Lighting pilot for the first time
initial lighting
Never use an open flame to
Purge air from the supply line as follows:
check for gas leak.
• Open main shutoff valve.
• Unscrew main pressure test point.
• Leave inlet test screw open until gas comes in.
• When gas is flowing, tighten inlet screw immediately.
leak testing
1. Follow the pipe from the gas supply line connection to the gas valve. Check connection for
leaks with soap and water mixture.
2. Next check for gas leaks at the burner with soap and water mixture.
3. Check the pilot for gas leaks with soap and water mixture.
75D0004
35
MLDV Series Gas Fireplace
OPERATING INSTRUCTIONS (Milli-volt)
approved leak testing method
You may check for gas leaks with the following methods
only:
• Soap and water solution
• An approved leak testing spray
danger
• Electronic sniffer
Never check for gas leak with open
flame!
WARNING
Lighting pilot for the first timE
If using a soap and water
solution to test for leaks,
DO NOT spray solution onto
control body.
NOTE: Remove any excessive pipe
compound from the connections.
Excessive pipe compound can set off
electronic sniffers.
Check for gas leaks in each of the following locations:
• Pipe from the gas supply line connection to the gas valve
• Burner connections • Field made joints / gas shutoff valve
• Pilot • Factory made joints
• Each joint or connection
• All joints on valve and control body
The control has an interlock device that does not allow the lighting of the fireplace
up to the moment the safety device of the flame has not interrupted the gas flow.
After that period of time (when the magnet is closed), it is possible to start the
lighting operation.
The gas control knob is designed to be operated by hand. DO NOT use any tools
during this operation. Damaged knobs may result in serious injury.
to pilot
If the pilot does not stay lit, repeat steps 1 and 2.
ON
PILOT
2. Depress fully and hold pilot gas knob. Depress
piezo igniter as many times as needed to ignite pilot.
Keep knob fully depressed for a few seconds. Release
and check that pilot continues to burn.
F
1. Depress and turn knob counterclockwise
position.
OF
WARNING
Lighting pilot
PIL
Pilot Position
OT
Continued on next page
36
FP1935
control knob pilot
75D0004
OPERATING INSTRUCTIONS (milli-volt)
MLDV Series Gas Fireplace
Lighting burner
OFF
RS
The “ON/OFF/RS” switch for the main burner can be found behind
door of the fireplace. This switch allows you to turn on and to turn
off the main burner without using the gas valve knob. Make sure the
button is in the “ON” position to light the main burner.
ON
main burner switch
On/Off/RS Switch
Lighting the burner
Depress and turn the knob counterclockwise
to the “ON” position.
It will take less than four (4) seconds for the burner to ignite.
P
ILOT
Depress and turn knob to pilot position to keep burner off while maintaining the pilot light.
OFF
ON
Pilot position
PIL
On Position
OT
F
PILOT
ON
OF
PIL
OT
Pilot Position
Depress and turn knob clockwise
FP1937
control knob on
FP1935
to “OFF”
position.
control knob pilot
ON
OFF
PI L O
T
PIL
Off Position
75D0004
OT
37
SIGNATURE
MLDV
Series GasCOMMAND
Fireplace - CHECKING GAS PRESSURE and Electrical installation
1. Check gas type. The gas supply must be the same as
stated on the appliance’s rating decal. If the gas supply
is different from the fireplace, STOP! Do not install the
appliance. Contact your dealer immediately.
2. To ease installation, a 24" (610 mm) flex line with manual
shut-off valve has been provided with on this appliance.
Install and attach 1/2" gas line onto shut-off valve.
3. After completing gas line connection, purge air from
gas line and test all gas joints from the gas meter to the
fireplace for leaks. Use a solution of 50/50 water and
soap solution or a gas sniffer.
4. To check gas pressures at valve, turn captured screw
counter clockwise 2 or 3 turns and then place tubing
to pressure gauge over test point. Turn unit to high.
Figure 56. After taking pressure reading, be sure and
turn captured screw clockwise firmly to reseal. Do not
over torque. Check test points for gas leaks.
Pressure Inlet
FP1909a
Pressure Outlet
Pilot Adjustment
Screw
WARNING
Figure 56 Signature Command Valve
FP1909a
Do not use
open flame
to check for
gas
signature
command
valve
leaks.
alternate view
8/08
Electrical Wiring
WARNING
1. This fireplace is equipped with the Signature Control
valve which operates on 6 volts. The 6 volt DC adapter
plugs into the fireplace junction box A/C power supply.
Four (4) “AA” batteries are used for back up during
power outages.
2. The Signature Command System can also be operated
without A/C power. The system can run on four (4) “AA”
batteries for approximately six (6) months under normal
use.
3. A/C power must be used to power the A/C module,
blowers, lights and AUX accessories if used with this
fireplace.
Electrical connections should only
be performed by a qualified, licensed
electrician. Main power must be off when
connecting to main electrical power supply
or performing service. All wiring shall be
in compliance with all local, city and state
codes. The appliance, when installed, must
be electrically grounded in accordance with
local codes or in the absence of local codes,
with the National Electrical Code ANSI/NFPA
70 (latest edition) and Canadian Electrical
Code, CSA C22.1.
CAUTION
General
Label all wires before disconnecting when
servicing controls. Wiring errors can cause
improper and dangerous operation.
Optional Accessory Requirements
1. This fireplace may be used with a wall switch, wall
mounted thermostat and/or Signature Command wireless controls.
2. The command center control may be mounted on the
wall with the use of the SCSWEK 15ft. wall mount extension kit.
38
75D0004
ELECTRICAL INSTALLATION
MLDV Series Gas Fireplace
JUNCTION BOX WIRING
1. This should be done before framing the fireplace. Wire the
receptacle into an electrical circuit. Wire with minimum 60°
C wire in accordance with prevailing codes.
2. Remove the external junction box cover by removing the
screw from the side of the outside firebox wall. Junction box
was installed at the factory.
3. The junction box cover has a factory installed “romex” style
strain relief connector. After connecting the wires, route the
wire leads through this connector. Refer to the wiring diagram in Figure 57.
120V AC
60Hz
Factory Supplied
Not Supplied
Junction Box
Figure 57 Junction Box Wiring Diagram
The command center may be mounted on the wall with
the use of the SCSWEK Kit (15ft. cable, junction box, wall
cover).
Mount the junction box provided at the desired location
on the wall. Do not extend beyond the 15 ft. wire cable
provided. If a longer distance is required, the 15 ft. may be
extended up to 30 ft. maximum by using two (2) SCSWEK
cables plugged together.
Route the wire from junction box to lower control area at
bottom of fireplace. Unplug the 12" cable from the command center. Attach the connector to the pins from wire
by pushing in to connector making sure to follow the color
code on connector. Plug the 15 ft. extension cable into the
2 ft. cable. Remove command center from the fireplace
and plug the other end of the extension cable into the
command center. Snap on wall cover provided and screw
to junction box.
75D0004
FP1912
WALL SWITCH INSTALLATION
Junction box wiring
The wall switch wire connection is located off the 2 ft. wire
8/08
harness from the
control box to the command center. Fig-
ure 58. The connection is labeled “Wall Switch”. Unplug
the male and female connectors and connect the two (2)
low voltage wires provided. Run wire to desired location
on wall. Up to 50 ft. of 18 ga. wire may be used if necessary. Attach wires to wall switch. Mount the wall switch in
to junction box and screw on cover.
WARNING
COMMAND CENTER WALL INSTALLATION
Do not connect wall switch to 110 V
circuit.
39
MLDV Series Gas Fireplace
ELECTRICAL INSTALLATION
Optional
AC Module
To Junction Box
in Fireplace
Pilot
{
Plug in Connector
Optional
Blower
Optional
Light { White
Black
White
Black
Optional { White
Black
Aux.
Green
Connector Pin
To Control Board
Input 300 Watt Max. Each
Optional A/C Module Replaces 6V Adapter
When Used
RF Receiver
ON/OFF Button
Control Board
6V AC
Adapter
Black / Thermopile
Red / Thermopile
Sensor
Conversion
NG/LP
Ignitor / Sparker
Plug-in Connector
Control Board to Command Center
OFF/LO
NOTE: Wall switch wires must be connected together if a wall switch is not
being used.
Ground
Plug-in Connector
Stepper Motor to
Control Board
LED
ON/HI
Master Switch
Command Center
Optional
Wall Switch
DC Power/Green
Plug-in Connector
Control Board to
Solenoid
Gas Out
Gas In
CAUTION
Figure 58 Signature Command Wiring Diagram
40
Pilot Gas Tubing
Valve
Electrical connections should only be
performed by a qualified, licensed electrician.
Main power supply must be turned off before
connecting fans to the main electrical power
supply or performing service.
75D0004
OPTIONAL FAN BLOWER SYSTEMS
The black and white wires on the AC box
wiring harness are marked ‘Blower’, ‘Light’
and ‘Aux’. It is important to use the wires
marked ‘Blower’ or the control will not work
correctly.
WARNING
WARNING
Electrical Grounding Instructions: This
appliance is equipped with a three-prong
(grounding) plug for your protection against
shock hazard and should be plugged directly
into a properly grounded three-prong
receptacle.
NOTE
MLDV Series Gas Fireplace
Electrical connections should only be
performed by a qualified licensed electrician.
Main power supply must be turned off before
connecting the fan to the main electrical
power supply or performing service.
BLOTSDVSC SIGNATURE COMMAND BLOWER
To Junction Box
In Fireplace
Optional
Light
WHITE
BLACK
Blower (300w Max)
Optional
AUX
{
{
Optional AC
Module
WHITE
BLACK
BLACK
WHITE
GREEN
Connector
Pin To Contro l Box
Control Box
Blower (300w Max)
Figure 59 BLOTSDVSC Blower Wiring Diagram
The BLOTSDVSC Blower Kit requires the SCSACM A/C
Module and the TSFSC remote to install and operate this
kit. Refer to blower instructions for installation.
FP2103
FP2684
BLOTSDVSC fan wiring
75D0004
41
MLDV Series Gas Fireplace
OPTIONAL FAN BLOWER SYSTEMS
BLOTSDV AUTOMATIC THERMOSTAT BLOWER
120VAC
Receptacle Junction Box
BLACK
GREEN
WHITE
BLACK
WHITE BLACK
BLACK
Speed Control Figure 60 BLOTSDV Blower Wiring Diagram
Before installing the blower, wire the receptacle into an
electrical circuit. This should be done before framing the
fireplace. Wire with minimum 60° C wire in accordance
FP2685
with prevailing codes.
FP2685
BLOTSDV blower wiring
42
75D0004
OPERATING INSTRUCTIONS - SIGNATURE COMMAND
MLDV Series Gas Fireplace
WARNING
for your safety read before lighting
If you do not follow these instruction
exactly, a fire or explosion may result
causing property damage, personal
injury or loss of life.
A. This appliance is equipped with an ignition device which automatically lights the pilot. Refer
to the instructions.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to
the floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
• Do not attempt to light any appliance.
• Do not touch any electric switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call the fire department.
C. Use only your finger to push in the master switch. Never use tools. If the switch will not function by hand, do not try to repair it. Call a qualified service technician. Force or attempted
repair may result in a fire or explosion.
D. Do not use this appliance if any part of it has been under water. Immediately call a qualified
service technician to inspect the appliance and to replace any part of the control system and
any gas control that has been under water.
continued on next page
75D0004
43
MLDV Series Gas Fireplace
OPERATING INSTRUCTIONS - SIGNATURE COMMAND
OPERATing INSTRUCTIONS
1. STOP! Read the safety information above.
2. This appliance is equipped with an ignition device which automatically lights the burner. Do not try to
light the burner by hand.
3. With five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas,
STOP! Follow "B" in the safety information on page 38. If you do not smell gas, go to next step.
4. Press the master switch to the "ON" (-) position. Within eight (8) seconds it will beep once. This indicates the system is ready.
5. Press "ON " button. Sparker will spark and pilot flame will light.
6. Once pilot flame is established, the main burner flame will light automatically.
7. If the pilot will not stay lit after several tries, turn the master switch to "OFF" and call your service
technician or gas supplier.
OFF
OFF
ON
Master
Switch
ON
Command Center
FP1913
FP1914
Switch box
Pilot w sparker
8/08
8/08
TO TURN OFF GAS TO APPLIANCE
1. Turn master switch to "OFF".
2. Turn off all electrical power to the appliance if service is to be performed.
44
75D0004
SIGNATURE COMMAND SYSTEM OPERATION INSTRUCTIONS
MLDV Series Gas Fireplace
FEATURES
Command Center
RF Receiver
ON/OFF
• Easy Access Function Operation and System Configuration
• Operation Confirmation/Fault Diagnostic Indications (LED/
Buzzer)
• ON/OFF/HI/Med/Low Operation
• Optional Wall Mounting
Control Board
•
•
•
•
•
•
•
•
Electronic Ignition
Pilot Lockout safety feature
Electric Power Regeneration from Thermopile to save battery
6-hour Automatic Shut Down Option
Convenient NG/LP Gas Type Conversion
Standing Pilot/Intermittent pilot Conversion
Previous settings Restoration Ability (Memory Off)
Uninterrupted Operation During Power Outage (Automatic
Battery Backup)
• ON/OFF RF Remote Receiver
• Optional Transmitter Learn Capability
To Sensor
To Sparker
NG/LP
Conversion
Control Board
To Command Center
To Stepper Motor
6 V A/C
Adapter
To Valve
OFF
LED
ON
Master Switch
Command
Center
AC Module Board (Optional, requires TSFSC Remote)
• Easy Snap-on Design
• Embedded Compact 120 VAC Adapter with Auto Battery Back
To Thermopile
Battery Door
Figure 61 -
Signature Command System Components
up Feature
• Remote Controlled 3-step Blower, Lighting, and On/Off Auxiliary AC Outputs
FP1917
Transmitter (Optional)
Signature
components
TSFSC
TSTSC
TSMSC
RTSC
RMSC
8/08
Three Flame Height Settings
X
X
X
X
X
Low battery Indication for Transmitter X
X
X
X
X
Child Proof Lock-out
X
X
X
X
X
LCD Backlight
X
X
X
X
X
Security Codes 16
X
X
X
X
X
Countdown 6 hr Timer
X
X
X
--
-Standard Thermostatic Control Mode
X
X
--
X
-Smart Mode® Thermostat (Auto Flame & Blower Modulation)X
X
--
--
-Three Brightness Settings for Lights X
--
--
--
-Three Speed Control for Blower
X
--
--
--
-On/Off Auxiliary
X
--
--
--
-Programmable Timer to turn blower on and off
X
--
--
--
--
BATTERY INSTALLATION
The Command Center uses four (4) "AA" batteries as back up for power outages. The system can operate for approximately six (6) months on battery power.
To Install Batteries (not included):
1. Press down the battery door tabs and pull out to remove battery door.
2. Install the batteries as indicated on Command Center.
3. Close battery door by snapping in place.
4. When the four (4) batteries are installed the system will operate without power.
5. The batteries should be replaced when the LED indicates low battery or at least once a year.
75D0004
45
MLDV Series Gas Fireplace
SIGNATURE COMMAND SYSTEM OPERATION INSTRUCTIONS
SYSTEM CONFIGURATION/SETUP
All System configuration/setup is done on the Command Center.
NOTE: When using On/Off wall switch, the switch must be in the ON position to perform all configuration set ups at
the command center.
Intermittent/Standing Pilot Setup (Default intermittent)
1. Holding the ON button on the Command Center while turning on the master switch will toggle between standing
pilot and intermittent pilot.
2. After the above operation, one beep (for standing pilot) or two beeps (for intermittent pilot) will be given as confirmation.
Six-hour Safety Shutdown Option (Default ON)
1. The system comes preset from the factory with a six (6) hour shutdown from its last command of operation. This is
done to prevent the fireplace from continuing to operate if unattended. You may disable this feature if you wish.
NOTE: By disabling this feature, your fireplace may continue to operate unattended.
2. When the master switch is in the ON position (“-”), pressing the ON button and the OFF button on the Command
Center simultaneously will toggle between enabling and disabling the six-hour shutdown option.
3. After the above operation, one beep (for enabling the six-hour shutdown option) or two beeps (for disabling the
six-hour shutdown option) will be given as confirmation.
Remote Transmitter Learn Function (Default OFF)
1. The RF receiver button located on the Control Board must be in the on position before the learn function can begin.
Use paper clip to depress button. One beep for RF receiver ON or two beeps for RF receiver OFF will be given as
confirmation. Refer to Figure 62 for location.
2. After the RF receiver is on, holding the OFF button on the Command Center while turning on the master switch will
activate the learn function for the transmitter.
3. After the above operation, two beeps will be given and the green LED on the Command Center will flash for 10
seconds.
4. During the 10 seconds, press the OFF button on a transmitter to learn. Another two beeps will be given to confirm
a successful learning. Refer to transmitter instructions for remote operations.
Shutting Off the Standing Pilot (Temporary Shut Off)
To shut off the standing pilot for service or summer shut down, press and hold the ON button on the Command Center
for 3 seconds when the master switch is in the ON position (“-”) and the main burner is off.
Note: Pilot will resume the next time system is turned on.
Key Combinations for System Settings
NOTE: When On/Off wall switch is used, it must be in the On position to perform all system setups.
Function
Intermittent/Standing
Pilot Setup
Standing Pilot Temp.
Shutoff
RF Remote Receiver
On/Off
Learn Remote
Transmitter
6-hour safety shutdown setup
46
Operation
Hold the ON ▲ button while turning on the master switch
(Beep once for standing pilot, twice for intermittent pilot)
Hold the ON ▲ button 3 seconds (when the master switch
on the main burner is off)
Push the RF receiver On/Off button on the control board
Beep once for ON and beep twice for OFF
Hold the OFF ▼ button while turning on the master switch
(Beep twice then press any handheld remote button)
Press the ON ▲ button and OFF ▼ button simultaneously
(Beep once for ON, twice for OFF)
Default Setting
Intermittent
Pilot
RF OFF
ON
75D0004
SIGNATURE COMMAND SYSTEM OPERATION INSTRUCTIONS
MLDV Series Gas Fireplace
FUNCTIONS/OPERATION
Turning on the fireplace
1. Turn on the master switch and wait for a beep.
2. Press the ON button on the Command Center or turn on wall switch. Pilot will light and burner will come on High
setting or last memory setting (See Turning Off Fireplace below). For memory feature.
Pilot Safety Lockout Function
1. If the pilot doesn’t light after sparking for 30 seconds, pilot trial lockout happens. The LED on the Command Center
flashes Green once every 2 seconds, until reset.
2. If the pilot flame is lost during normal operation, the system will try three (3) times to relight after three (3) failures,
flame loss lockout happens. The LED on the Command Center flashes Red-Green once every 2 seconds, until
reset.
3. Turning the master switch on the Command Center to the off position, then ON again will reset the system.
Flame Height Control
1. Press the ON button (on the Command Center) once to turn on the main burner with maximum flame height.
2. Press the OFF button to decrease flame height. The first two presses will decrease the flame height to medium and
low.
3. The third press on OFF will turn off the main burner. In standing pilot configuration, the pilot will stay; in intermittent
pilot configuration, the pilot will be shut off.
Turning the Fireplace Off
There are three ways to turn the fireplace off.
1. Flip the master switch to the off (“O”) position. (This will turn the entire system OFF.)
2. Press the OFF button to Medium, Low, then Off.
3. Hold the OFF button anytime for three seconds or by turning off the wall switch. These two commands of OFF are
(Memory Off) the system will remember all last settings before turning off. The next time the fireplace is turned on,
all settings will resume. To reset, change to the desired settings and shut off by using the Memory Off commands
and the system will be reset to those new settings.
Command Center Operations:
The following functions are available on the Command Center.
Function
Power Up
Fireplace ON
Fireplace OFF
Flame Height Up
Flame Height Down
Operation
Flip the master switch to the ON ("_") position to power up the system
Press the ON ▲ button on the Command Center or turn on wall switch to turn the fireplace on
Flip the master switch to the OFF ("o") position OR press the OFF ▼ button 3 times OR for Memory Off, hold the OFF ▼ button 3 seconds, or turn off wall switch
Press the ON ▲ button once to turn on the fireplace with maximum flame height
Press the OFF ▼ button to lower the flame height to Medium and Low
Self Diagnostics Chart:
The Command Center has a self-diagnostic LED enabling you to troubleshoot problems and potentially avoid a service call. Please refer to the charts below for indicator reference.
75D0004
Fault
Conversion Cover Missing
Spark Fail
No Sensor Signal
Pilot Lockout - trial
Pilot Lockout - flame loss
Low Battery
No or Low Thermopile Power
Learning
AC Power On
Pressure Switch Failure
Power Vent Only
LED Indication
One RED (1 time)
Two RED (1 time)
Three RED (1 time)
One GREEN, every 2 sec. (until manual reset)
One RED-GREEN, every 2 sec. (until manual reset)
One RED, every 10s (continuously)
Two RED, every 10s (continuously)
GREEN Flashes, every 1 sec. (for 10 sec.)
GREEN solid
One RED every 2 sec. (until manual reset)
47
MLDV Series Gas Fireplace
glass removal and brick installation
Glass Frame Removal
caution
1. Remove access panel by lifting up and out.
2. Release three (3) clamps on bottom of fireplace.
Figure 62
3. Tilt glass frame out and lift glass frame up until it clears
hook on top of fireplace.
4. Set glass frame aside.
Glass Frame
Each clamp has a quick spring
force. When reinstalling
clamps, keep fingers clear.
!
WARNING
HOT GLASS WILL
CAUSE BURNS.
DO NOT TOUCH GLASS
UNTIL COOLED.
Clamps
Figure 62 Remove Glass Frame
FP1982
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
brick Installation
Facing
1. Install the rear brick panel by sliding it over the bracket
fastened to the rear of the firebox.
2. Remove the existing screws fastened to the sides of
the firebox toward the tops.
3. Slide the right panel into place and secure the panel
using one of the brackets provided with the kit and one
of the screws removed earlier.
4. Repeat step 2 for the left panel.
Eyebrow/
Canopy
FP1982
glass removal
Tabs for Screw
EYEBROW/CANOPY INSTALLATION
1. Remove glass frame.
2. Hold eyebrow/canopy with groove facing up and tabs
for screws facing down. Figure 63
3. Install by placing eyebrow under bottom lip of facing.
Hook bottom lip of facing into groove of eyebrow. Pull
eyebrow forward until it stops. Figure 63
4. Insert self-tapping screws into tabs on bottom of eyebrow and into sides of facing.
NOTE: Eyebrow/canopy is optional depending upon clearances to combustible mantels and trim. Refer to Page 8.
48
FP2915
Groove
Eyebrow /
Canopy
Tab
Figure 63
FP2915
eyebrow
75D0004
logs and rock wool installation
MLDV Series Gas Fireplace
1. Distribute one layer of rock wool to cover all round burner ports. Do not cover rectangular slots,
located in front and rear. Figure 64
FP1983
Figure 64 Rock Wool Placement on Burner.
FP1983
MLDV rock wool place
2. Place log #1 by setting the log over the rear bracket over the two pins. Figure 65
Log #1
LG543
Figure 65 Install log #1
75D0004
WARNING
LG543
Note: Placing rock wool on burner provides glowing
MLDV
log
#1
embers. For best results, pull the rock wool
apart
into
pieces the size of a dime or smaller.
Do not use the entire bag of rock wool
to cover the burner. This could cause
the flame to burn poorly and may lead to
sooting.
49
MLDV Series Gas Fireplace
log installation
3. Place log #2 at angle across the
burner by setting the logs over
the two pins located on top of the
burner. Figure 66
Log #2
Figure 66 Install Log #2
LG544
4. Place log #3 at an angle over log
#2 toward the back by matching
the rectangular notch on the bottom of this log with the rectangular
protrusion on log #2. Then set the
notch located on the bottom of this
LG544
log toward the back over the metal
MLDV log #2
bracket located to the right side of
the burner. Figure 67
Log #3
Figure 67 Install log #3
LG545
Log #4
5. Place log #4 by matching the rectangular
LG545 protrusion on the bottom of this log over the
notch on log #1, then swing the
MLDV logrectangular
3
log slightly toward the front and set the log
over the notch located on the upper surface
of log #3. Figure 68
LG546
50
LG546
MLDV log #4
Figure 68 Install log #4
75D0004
log installation
MLDV Series Gas Fireplace
6. Place log #5 by matching the rectangular notch on the bottom of the log
with the rectangular protrusion on log
#2, then set the notch on the bottom
of this log over the very far left tong
on the grate. Figure 69
Log #5
Figure 69 Install Log #5
LG547
7. Place log #6 at an angle over log #5 toward
LG547
the
back by matching the rectangular notch
MLDV
log #5of this log with the rectanguon
the bottom
lar protrusion on log #5. Then, set the notch
located on the bottom of this log toward the
back over the metal bracket located to the
left side of the burner. Figure 70
Log #6
LG548
Figure 70 Install Log #6
LG548
8. Place log #7 between
the second
MLDV
log 6
and third right tong on the grate
as shown in Figure 71.
Figure 71 Install log #7
LG549
Log #7
51
75D0004
LG549
MLDV log #7
WARNING
MLDV Series Gas Fireplace
cleaning and maintenance
Thermocouple Sensor
Turn off gas before servicing fireplace. It is
recommended that a qualified service technician
perform these check-ups at the beginning of
each heating season.
Thermopile
Burner, Pilot and Control Compartment
Keep the control compartment, logs, and burner areas surrounding the
logs clean by vacuuming or brushing at least twice a year. Make sure
the burner porting, pilot air opening and burner air opening are free of
obstructions at all times.
FP1943
Pilot Flame
Sensor
The flames from the pilot should be visually checked as soon as the
heater is installed and periodically during normal operation. The pilot
flame must always be present when the fireplace is in operation.
Figure 72. The pilot flame has three distinct flames, one engulfing the
thermopile, one engulfing the thermocouple or sensor, and the other
reaching to the main burner.
Signature
Command
System Pilot
FP1943
pilot flame
Thermopile
burner
Inspect area around the injector. Remove any lint or foreign material
with a brush or vacuum.
Figure 72 Pilot Flame
FP2453
Burner Flame
The flames from the burner should be visually checked
as soon as the heater is installed and periodically during
normal operation. In normal operation, at full rate, and
after operating for about 15 to 30 minutes, the flame
should be yellow and slightly taller than the rear log.
Figure 73
FP2453
hooded pilot flames
If the flame is blue and only in the center, turn off unit
and let cool. After unit is cool, remove logs and check to
make sure the back holes in the burner are not covered
with rock wool. Replace logs.
NOTE: The type of installation, vent system configuration,
and wind effects may cause the flame patterns to vary.
Figure 73 Burner Flame Appearance
52
LG550
75D0004
cleaning and maintenance
MLDV Series Gas Fireplace
Venting SysteM
The fireplace and venting system should be inspected before initial use and at least annually by a
qualified field service person. Inspect the external vent cap on a regular basis to make sure that no
debris is interfering with the airflow. Inspect entire venting system to ensure proper function.
Glass Door
Thoroughly clean the inside of the glass door after using the fireplace for ten hours. Periodically
clean the glass door as necessary.
When cleaning the glass, remember:
•
•
•
•
•
•
Do not remove the glass when hot. Allow glass to cool before removal.
NEVER use abrasive materials.
Keep children and pets a safe distance away.
Never operate the fireplace without the glass door properly secured.
Never operate the fireplace if the glass is broken.
Replace any glass that is chipped, cracked, or broken. Replacement glass door assemblies
MUST be supplied by the fireplace manufacturer ­– No substitute materials may be used.
• Handle glass door with care to avoid striking or scratching it on hard objects.
To clean glass door, follow “Glass Removal” procedure outlined in the Final Installation section.
Film deposit on the inside of the glass should be cleaned off using a nontoxic, non-corrosive, nonabrasive, mild-cleaning solution. Simply apply an adequate amount to the glass and wipe off with a
damp cloth. After all maintenance has been completed, re-install glass door.
Logs
Leave logs installed in the fireplace for cleaning. Vacuum surface of the logs with a brush attachment.
If logs must be removed for cleaning, handle carefully by holding gently at each end. Gloves are
recommended to prevent skin irritation from ceramic fibers. If skin becomes irritated, wash gently
with soap and water. Vacuum surface of logs with brush attachment or brush logs with a soft bristle
brush (i.e. clean, dry paintbrush). To place logs back in the fireplace, see “Log Placement” found in
the Final Installation section.
NOTE: Do not use fluids to clean ceramic fiber logs.
Rock wool
Replace or add rock wool as required following installation instructions in the Final Installation section of this manual.
75D0004
53
MLDV Series Gas Fireplace
troubleshooting
Standing Pilot Ignition MILLIVOLT SYSTEM
SYMPTOM
POSSIBLE CAUSE
ACTION
1. Spark ignitor will
not light pilot after
repeated triggering
of piezo.
A. Wire disconnected.
A. Open door and check to make sure wire is connected to
ignitor.
B.Check for spark at electrode and pilot. If no spark and
electrode wire is properly connected, replace pilot
assembly.
C. Check remote/manual shut off valve from fireplace. Low
pressure can be caused by bent lines, restricted lines,
low pressure line pressure. Consult with plumber or gas
supplier.
D. Check Propane/LPG tank. Refill tank.
B. Defective ignitor.
C. No gas or low gas pressure.
D. No Propane/LPG in tank
2. Pilot will not stay
lit after carefully
following lighting
instructions.
A. Defective thermocouple
B. Defective valve
3. Pilot burning, valve
knob turned to
“ON”, switch is
turned to “ON” or
“RS”, but burner will
not ignite.
A. Defective switch, wall
switch, remote control or
wire
B. Pilot flame too small
C. Defective or malfunctioning thermopile
D. Defective valve
54
A. Check that thermocouple flame impinges on thermocouple. Clean and/or adjust pilot for maximum flame
impingement. Ensure that the thermocouple connection
at the gas valve is fully inserted and tight.
Disconnect the thermocouple from the valve, place one
millivolt lead wire on the tip of the thermocouple and the
other meter lead wire on the thermocouple copper lead.
Start the pilot and hold the valve knob in. If the millivolt
reading is less than 15 mV, replace pilot assembly.
B.If thermocouple is producing more than 15 mV, replace
faulty valve.
A. Check switch and wire for proper connection. Place
jumper wires across terminals of switch. If burner comes
on, replace defective switch.If the switch is OK, repeat
the same procedure on remote control If burner comes
on, replace remote control.
Place jumper wire across wire at gas valves (terminals
marked TH and TP/TH). If burner comes on, wires are
faulty or connections are bad. Replace wire.
B.If pilot flame is not close enough to the thermopile, adjust
pilot flame.
C.Check thermopile wire connections to make sure all
are tight and that the thermopile is fully inserted into
pilot assembly. Check thermopile with a millivolt meter.
Connect leads to TP and TP/TH terminals on the control
valve. If meter reading is below 325 mV, replace pilot
assembly.
D.Turn valve knob to “On” and switch to “ON.” Take a reading at the thermopile leads (TP & TP/TH) on the valve.
If the meter reads greater than 175 mV and the burner
does not light, replace defective valve.
75D0004
troubleshooting
MLDV Series Gas Fireplace
Standing Pilot Ignition MILLIVOLT SYSTEM
SYMPTOM
POSSIBLE CAUSE
ACTION
4. Frequent pilot
outage problem.
A. Pilot flame may be too high A. Clean and adjust the pilot flame for maximum flame
or too low, causing pilot
impingement on thermocouple.
safety to drop out
5. The pilot and main
burner extinguish
while in operation
A. Inner vent pipe leaking
exhaust gases back into
system
B. Horizontal vent improperly
pitched
C. Improper vent cap installation
A. Check for flue product leak. Replace defective pipe section.
B. Check horizontal-venting piping is running upward 1/4"
per foot. Do not run the pipe level or downward.
C. Check for proper installation and freedom from debris
or blockage.
6. Glass Soots
A.Flame impingement on logs A. Install log set per the instructions
Inspect the injector and air intake area. Make sure
this area does not have any blockage from debris and
clean.
Check gas supply.
7. Flame burn blue
and lifts off burner
(ghosting)
A.Insufficient oxygen being
supplied
75D0004
A.Ensure that the vent cap is installed properly and free of
debris. Ensure that the vent system joints are tight and
have no leaks. Ensure that no debris has been blocking
the inner air intake at the bottom back of the combustion
chamber. Ensure that the glass is properly secure and
latch.
55
MLDV Series Gas Fireplace
troubleshooting
SIGNATURE COMMAND SYSTEM
OPERATION
Install batteries and/or
plug in the AC board
FAULT
No beep in about
8 seconds
A
Using
battery?
Make sure
Command
Center and
the control
board are
connected by
a 2 feet or 15
feet cable
After the beep
Flip the master switch
(rocker switch) to the
ON position
Press the ON button on
the Command Center
No beep
or
no sound from the
valve indicating pilot
solenoid open
B
No sparking on
the pilot
C
Sparking doesn’t
continue
D
Pilot doesn’t light
Main burner doesn’t
light
ACTION
DIAGNOSIS
E
F
Check NG/LP
conversion cap
and control
board
connections
Check pilot
connections
Battery polarity wrong?
Re-install batteries
Battery voltage low?
Change batteries
AC plug is plugged to
AC mains?
Plug the AC plug to
AC mains
The 5-pin connector on
the AC board broken or
bent?
Repair or replace the
AC Board
LED on the Command
Center does not show
solid green?
Replace the AC Board
Check valve
connections
Check
grounding
Check power
supply (go
through A )
Replace the Control
Board or
Command Center
Go through
B
Sparking is happening
elsewhere (under the
pilot), re-install/replace
the pilot
The Control Board is having interference from the
surrounding metal (Ground)
Check gas supply
Go through E
Go through C
The sensor on the pilot
is not in the flame
(pilot flame too small)?
Re-install the Control
Board, move it around
or change the
Control Board
Sparking is not in the
path of gas flow, adjust
sparker position or
replace the pilot
Adjust sensor position
or replace the pilot
FP1911
troubleshoot sc
8/08
56
75D0004
replacement parts
MLDV Series Gas Fireplace
firebox components and accessories
4
5
7
2
8
3
8
Item DescriptionQty.
MLDV500
Standard Features
1. Junction Box Assembly (not shown) 75D0004
126D2128K
2. Control Cover
1
74D0119
MLDV parts
3. Glass Frame Assembly
1
75D1016
4. Insulation Board
1
75D0008
5. Eyebrow
120302777
Accessories/Field Installed Options
6. Decorative Mesh Glass Cover (not shown)
1
MLDV500SD
7. Firebrick Walls - Cottage Clay
1
FBMLDV500CC
7. Firebrick Walls - Cottage Red
1
FBMLDV500CR
7. Firebrick Walls - Vintage Brown Herringbone (not shown)
1
FBMLDV500VB
8. T-stat Blower w/Speed Control (not shown)
1
BLOTBLDV
8. SCS Blower Kit w/Timer Delay
1
BLOTBLDVSC
9. Andiron Kit (not shown)
1
FAI135
75D0004
57
MLDV Series Gas Fireplace
replacement parts
LOGS
Item
1.
2.
3.
4.
5.
6.
7.
58
DescriptionQty.
Log #1
1
Log #2
1
Log #3
1
Log #4
1
Log #5
1
Log #6
1
Log #7
1
MLDV500
75D0536
75D0537
75D0538
75D0539
75D0540
75D0541
75D0542
75D0004
replacement parts
MLDV Series Gas Fireplace
STANDING PILOT - MILLIVOLT CONTROL
2I
1
2C
2T
2
5
4
6
3
8
9
7
10
11,12, 13, 14, 15
0004
MLDV control parts
75D0004
59
MLDV Series Gas Fireplace
replacement parts
Standing Pilot – Millivolt Control
Item DescriptionQty.
1. Gas Valve Assembly
1
2. Pilot Assembly
1
2C. Replacement Thermocouple
1
2I. Replacement Igniter and Wire
1
2T. Replacement Thermopile
1
3. Burner Tube
1
4. Flex Hose w/Shutoff Valve
1
5. Rocker Switch
1
6. Piezo Igniter
1
7. Injector
1
8. Burner Assembly
1
9. Venturi
1
10. Wire Assembly
1
10. Wire Assembly
1
Accessories
11. Thermostatic Remote Control
1
12. On/Off Remote Control
1
13. Full Function Remote Control
1
14. Wall Switch
1
15. Wired Thermostat Kit
1
MLDV500NV MLDV500PV
37D0117
37D0118
34D0018
37D0019
37D1067
37D1067
37D1069
37D1069
37D1068
37D1068
75D0550
75D0550
69D0030
69D0030
41D0048
41D0048
14D0503
14D0503
56D061320H3153
75D1008
75D1008
45D0600
45D0600
44D0500
44D0500
44D0501
44D0501
RCST/RCT/WWTD/RCSTEB/RCSITE
RCB/RCBE/RCMT/WMTD
RCSTEB/RCSITE
MVWS
WT
Fuel Conversion Kits - Millivolt Control
Natural Gas to LP
MLDV500
LP to Natural Gas
MLDV500
60
Kit #ML500CKP
Kit #ML500CKN
75D0004
replacement parts
MLDV Series Gas Fireplace
SIGNATURE COMMAND SYSTEM
1
2
4
3
5
6
8
7
12
13,14,15,16,17
9
19
0004
SG parts
8/08
75D0004
61
MLDV Series Gas Fireplace
replacement parts
SIGNATURE COMMAND SYSTEM
Ref.
1.
2.
3.
4.
DescriptionQty.
Gas Valve Assembly
1
Pilot Assembly
1
Control Box
1
Command Center
1
5. Burner Tube
1
6. Flexhose with Shutoff Valve
1
7. Injector
1
8. Burner Assembly
1
9. Venturi
1
10. Wire Valve/Control (not shown)
1
11. Wire Command Center Control Box 2 feet (not shown)
1
12. A/C Adapter (6 Volt)
1
Accessories
13. Hand Held Remote Control w/ HI/LO and Timer
14. Hand Held Remote Control w/ Hi/lo And Tstat
15. Touch Screen Remote w/Optional Light, Auxiliary and Blower Control
16. Touch Screen Remote Hi/Lo and Timer
17. Touch Screen Remote Hi/Lo and TStat
18. SCS Wall Mount Extension Kit (15' wire, rough-in box, wall cover) (not shown)
19. SCS AC Module (Opt. Blower, Light & Aux. Control)
MLDV500NS
80D0001
80D0006
80D0018
80D0005
MLDV500PS
80D0002
80D0007
80D0019
80D0005
75D0550
75D0550
69D0030
69D0030
56D061320H3153
75D1008
75D1008
45D0600
45D0600
80D0010
80D0010
80D0008
80D0008
80D0041
80D0041
RMSC
RTSC
Tsfsc
TSMSC
TSTSC
SCSWEK
SCSACM
NOTE: TSFSC must be used with SCS A/C Module to control
blower, lights and aux.
Fuel Conversion Kits - Signature Command System
Natural Gas to LP
MLDV500
LP to Natural Gas
MLDV500
62
Kit #ML500CKPS
Kit #ML500CKNS
75D0004
VENTING COMPONENTS
MLDV Series Gas Fireplace
1
7
4
8
9
HO
T
5
2
3
6
11
10
0004
MLDV vent parts
For more information about, or instructions for, the venting components referenced above,
please contact the component manufacturer:
Selkirk Corporation: www. selkirkcorp.com or 800-992-8368
Simpson Duravent: www. duravent.com or 800-835-4429
75D0004
63
MLDV Series Gas Fireplace
VENTING COMPONENTS
VENT COMPONENTS FOR 4" X 6B\,"
Qty./
Item Box Description
1
1 Thru-roof Flexible Pipe Termination Kit with flex adapter 24" rigid pipe, roof support 4" x 65/8" and termination cap
1
1 Horizontal Square Termination Cap with built-in vinyl siding standoff, heat deflector and firestop
1
1 Square Horizontal Termination Cap
1
1 Round Horizontal Termination Cap
1
1 Sconce Termination Cap (aluminum)
2
1 Low-Profile Vertical Termination Cap
3
6 6" Pipe Length (galvanized)
3
6 9" Pipe Length (galvanized)
3
6 12" Pipe Length (galvanized)
3
624" Pipe Length (galvanized)
3
6 36" Pipe Length (galvanized)
3
6 48" Pipe Length (galvanized)
4
6 81/2" Pipe Extension (galvanized)
4
6 16" Pipe Extension (galvanized)
5
6 45° Elbow (galvanized)
6
6 90° Elbow (galvanized)
7
6 Adjustable Roof Flashing 0/12 - 6/12
8
6 Storm Collar
9
6 1" Firestop
9
6 3" Firestop
10
1 Vinyl Siding Standoff
11
1 Restrictor Disk
1 Attic Insulation Shield
6 Steep Roof Flashing 7/12 - 12/12
8 Horizontal Termination with 1" firestop
8 Flex Adapter Starter
64
Current
Simpson
Duravent
or MHSC
Part no.
TRFK
Old
Simpson
Duravent
or MHSC
Part no.
--
BHRTK
BHRTK
46DVA-HC
46DVS-HRCS
46DVA-HSC
46DVA-VC
46DVA-06
46DVA-09
46DVA-12
46DVA-24
46DVA-36
46DVA-48
46DVA-08A
46DVA-16A
46DVA-E45
46DVA-E90
46DVA-F6
46DVA-SC
46DVA-FS
FS3
46DVA-VSS
45D0551
46DVA-IS
46DVA-F12
BHRT/8
DVFFA/8
985
--
--
980
908
907
906
904
903
902
--
--
945
990
943
953
963
--
950
45D0551
--
943S
--
--
Selkirk
Part no.
--
--
4DT-HC
--4DT-VC
4DT-06
4DT-09
4DT-1
4DT-4
4DT-36
4DT-48
4DT-AJ
4DT-AJ14
4DT-EL45
4DT-EL90
4DT-AF6
4DT-SC
4DT-FS
-4DT-VS
------
75D0004
VENTING COMPONENTS
MLDV Series Gas Fireplace
VENT COMPONENTS FOR 5" X 8"
Current
Old
Simpson Simpson
Duravent Duravent
Qty./
or MHSC
or MHSC
Selkirk
Metal-Fab
Item Box Description
Part no.
Part no.
Part no.
Part no.
1
1 Horizontal High Wind Termination Cap
58DVA-HC
1285
5DT-HC
- 1
1 Horizontal Termination Cap w/Built-In Vinyl Siding
BHR8TK9
--
Standoff Heat Deflector, Firestop and Adjustable Pipe 11" to 145/8"
1
1 Horizontal Termination Cap Built-In Vinyl Siding Standoff,
BHS8TK
--
Heat Deflector, Firestop, 90° Elbow and Adjustable Pipe 11" to 145/8"
1
1 Horizontal Termination Cap w/Built-In Vinyl Siding Standoff,
BHSF8TKA
--
Heat Deflector, Firestop, Flexible Pipe 20" to 48", Adapter
1
8 Horizontal Termination w/ 1" Firestop
BHRST/8
1
1 Horizontal Temination Cap
5DHT
2
1 Vertical Termination
58DVA-VC
1280
5DT-VC
5DVT
3
4 6" Pipe Length
58DVA-06
1208
5DT-06
5D6
3
4 9" Pipe Length
58DVA-09
1207
5DT-09
3
4 12" Pipe Length
58DVA-12
1206
5DT-12
5D12
3
424" Pipe Length
58DVA-24
1204
5DT-24
5D24
3
4 36" Pipe Length
58DVA-36
1203
5DT-36
5D36
3
4 48" Pipe Length
58DVA-48
1202
5DT-48
5D48
4
4 81/2" Pipe Extension
58DVA-08A
--
5DT-AJ
4
4 16" Pipe Extension
58DVA-16A
--
- 5
4 45° Elbow
58DVA-E45
1245
5DT-EL45
5D456
5
4 45° Swivel Elbow
--
--
5DT-EL45
6
4 90° Elbow
58DVA-E90
1290
5DT-EL90S
5D906
6
4 90° Swivel Elbow
--
1290G
5DT-EL90S
7
6 Flashing, 0/12 to 6/12 Roof Pitch
58DVA-F6
1243
5DT-AF6
5DF
7
Steep Roof Flashing
58DVA-F12
1243S
- 8
6 Storm Collar
58DVA-SC
1253
5DT-SC
5DSC
9
4 Firestop
58DVA-FS
1263
5DT-FS
5DFS
9
3" Firestop
FS38
FS38
- 10
1 Vinyl Siding Standoff
58DVA-VSS
1250
5DT-VS
5DVS
11
Attic Insulation Shield (not shown)
58DVA-IS
--
- 12
8 Flex Adapter Starter (not shown)
DVFF8A/8
--
- 13
1 Reducer - 5 x 8 to 4 x 65/8 (not shown)
1222DA
1222DA
--
For more information about, or instructions for, the venting components referenced above, please contact
the component manufaturer:
Selkirk Corporation: www. selkirkcorp.com or 800-992-8368
Simpson Duravent: www. duravent.com or 800-835-4429
Metal-Fab, Inc.: www.metal-fabinc.com or 316-943-2351
75D0004
65
VENTING COMPONENTS
MLDV Series Gas Fireplace
HORIZONTAL VENTING - 4" x 7"
Horizontal Vent Termination Kits
Description
Up and Out Side Wall Termination Kit w/ 10" to 16" 7TDVSCTK
Adjustable Termination Pipe, 90° Elbow, Firestop, and Cool Touch Termination w/ Siding Shield
Rear Vent Cool Touch Termination w/ Siding Shield for Straight-out Applications and Firestop - 8 pack
7TRVCT/8
Rear Vent Hot Touch Termination w/ Siding Shield for
Straight-out Applications and Firestop - 8 pack
7TRVHT/8
Termination Guard for 7" T.L. Rear Vent Hot Touch
Terminations 97TRVT/7TSVKT)
7TRVTG
Snorkel Termination
7TDVSNORK
7" T.L. DVRTSB Termination Screen Guard
7TBSG
584B
Vent components
s
Starter
Kit
nt
e
n
po 2/25/99 djt
Model Number
Rear Vent Hot Touch Termination Kit w/ 10" to 16" 7TBRHTK
Adjustable Termination Pipe, Firestop, and Hot Touch
Termination w/ Siding Shield
Up and Out Starter Kit w/ 40" Flex Pipe, Firestop, Cool
7FDVSCTK
Touch Termination w/ Siding Shield, and 2 ea. Clamp
Bands
m nt
g pe jt t lo
4E tin
8
5 en sco d wis k
V ele /99 9 t loc
T /25 0/9 T20/2 /10
1 /10
3
o eLock Pipe20"
CTwist
Termination Pipe - 8 pack
v
ck
7TDVP20/8
10" - 16" Adjustable Termination Pipe - 4 pack
7TDVPA/4
12" - 18" Adjustable Vent Length 7TDVP1218
35" - 64" Adjustable Vent Length
7TDVP3564
8" Vent Pipe - 4 pack
7TDVP8/4
12" Vent Pipe - 4 pack
7TDVP12/4
24" Vent Pipe - 4 pack
7TDVP24/4
36" Vent Pipe
7TDVP36
36" Vent Pipe - 30 pack
7TDVP36/30
po
48" Vent Pipe - 30 pack
m
o s
C
n
ck
4F ting ctio jt t lo5" x 8" to 4" x 7" Adapter
8
5 en se d is Flex Adapter Starter Kit
V pe 99 tw
Twist Lock ElbowsPi 25/ /99
45° Elbow for Vertical/Horizontal Offset
2/ /20
45° Elbow for Vertical Offsets - 8 pack
10
48" Vent Pipe
7TDVP48
90° Elbow for Vertical/Horizontal Offset
7TDV90
90° Elbow for Vertical/Horizontal Offset - 8 pack
7TDV90/8
Shields and Supports
1" Firestop
7DV1FS
ts
n
ne
3" Firestop
584D
1" Attic Insulation Shield
Vent
Components
584C
Combination Horizontal Offset/Roof Support
90
degree
elbow
Vent components
45 degree 2/25/99
elbow djt
10/20/99 twist lock
584G
7TDVP48/30
7TDVP58
DVFFA/8
7TDV45
7TDV45/8
7DV3FS
7DV1AIS
2/25/99
djt 584H
Venting Components Venting components
Firestop spacer twistlock
attic insulation shield
10/20/99
2/25/99 djt
66 2/25/99 djt
584I
vent components
offset support
2/25/99 djt
7DVCS
75D0004
VENTING COMPONENTS
MLDV Series Gas Fireplace
VERTICAL VENTING - 4" x 7"
Vertical Vent Termination Kits
Description
Vertical Vent Termination w/ Storm Collar (flashing NOT included)
7TDVSKV
Model Number
Vertical Vent Termination w/ Storm Collar - 8 pack
(flashing NOT included)
7TDVSKV/8
Vertical Vent Termination w/ 1/12 - 6/12 Flashing, Storm
Collar and Ceiling Support Kit
7TDVSKVA*
Vertical Vent Termination w/ 6/12 - 12/12 Flashing, Storm Collar and Ceiling Support Kit
7TDVSKVB*
Vertical Vent Termination w/ Flat Flashing, Storm Collar
and Ceiling Support Kit
7TDVSKVF*
Twist Lock Pipe20" Rigid Pipe - single pack
7TDVP20
30" Flex Pipe - single pack
7FDVP30
12" - 18" Adjustable Vent Length
7TDVP1218
35" - 64" Adjustable Vent Length
7TDVP3564
8" Vent Pipe - 4 pack
7TDVP8/4
584B
Vent components
Starter Kit
2/25/99 djt
ts
en12" Vent Pipe - 4 pack
n
po t
24"
Vent Pipe - 4 pack
m
n
o
e
ck Pipe E ng C e v jt 36" loVent
4
p
t
i
s
58 ent sco d 36"
wi Vent Pipe - 30 pack
s
t
9
t
e
V
l
9 n9
Te /25o/ ne0/9 48" Vent Pipe
2 p0/2
48" Vent Pipe - 30 pack
m1
o
s
C
n
5"ckx 8" to 4" x 7" Adapter
4F ting ctio jt t lo
8
5 en se d is Flex Adapter Starter Kit
V e 9 tw
Twist Lock ElbowsPip 5/9 /99
45° Elbow for Vertical/Horizontal Offset
/2 20
2
/
45° Elbow for Vertical Offsets - 8 pack
10
7TDVP12/4
90° Elbow for Vertical/Horizontal Offset
7TDV90
90° Elbow for Vertical/Horizontal Offset - 8 pack
7TDV90/8
Shields and Supports
1" Firestop
7DV1FS
584D
1" Attic Insulation Shield
Combination Horizontal Offset/Roof Support
Vent Components
584C
90 degree elbow
Vent components
45 degree 2/25/99
elbow djt
10/20/99 twist lock
7TDVP24/4
7TDVP36
7TDVP36/30
7TDVP48
7TDVP48/30
7TDVP58
DVFFA/8
7TDV45
7TDV45/8
7DV1AIS
7DVCS
2/25/99 djt
584G
10/20/99
twistlock
Venting Components
Firestop spacer
2/25/99
584I djt
584H
Venting components
attic insulation shield
vent components
2/25/99 djt
offset support
2/25/99 djt
75D0004
67
MLDV Series Gas Fireplace
68
75D0004
MLDV Series Gas Fireplace
75D0004
69
MLDV Series Gas Fireplace
Massachusetts Residents Only — Please read and follow these special requirements
NOTE REGARDING VENTED PRODUCTS
This product must be installed by a licensed plumber or gas fitter
when installed within the Commonwealth of Massachusetts.
Any residence with a direct vent product must have a CO
detector installed in the residence.
Installation of the fireplace or vented gas log in the State of
Massachusetts requires the damper to be permanently removed
or welded in the fully open position.
In addition, a naturally vented gas log may not be installed in a
bedroom or bathroom in the State of Massachusetts.
Flex line installation must not exceed 36 inches and must have
a T shutoff valve.
NOTE REGARDING VENT FREE PRODUCTS
This product must be installed by a licensed plumber or gas fitter
when installed within the Commonwealth of Massachusetts.
In addition, vent free products may not be installed in a
bedroom or bathroom regardless of size or type in the State of
Massachusetts.
Flex line installation must not exceed 36 inches and must have
a T shutoff valve.
CARBON MONOXIDE DETECTOR REQUIREMENTS
(2)Revise 10.8.3 by adding the following additional
requirements:
(a) For all side wall horizontally vented gas fueled
equipment installed in every dwelling, building or structure used
in whole or in part for residential purposes, including those
owned or operated by the Commonwealth and where the side
wall exhaust vent termination is less than seven (7) feet above
finished grade in the area of the venting, including but not
limited to decks and porches, the following requirements shall
be satisfied:
1. Installation of carbon monoxide detectors. At the time
of installation of the side wall horizontal vented gas fueled
equipment, the installing plumber or gas fitter shall observe
that a hard wired carbon monoxide detector with an alarm and
battery back-up is installed on the floor level where the gas
equipment is to be installed. In addition, the installing plumber
or gas fitter shall observe that a battery operated or hard wired
carbon monoxide detector with an alarm is installed on each
additional level of the dwelling, building or structure served by
the side wall horizontal vented gas fueled equipment. It shall be
the responsibility of the property owner to secure the services of
qualified licensed professionals for the installation of hard wired
carbon monoxide detectors
a. In the event that the side wall horizontally vented gas
fueled equipment is installed in a crawl space or an attic, the
hard wired carbon monoxide detector with alarm and battery
back-up may be installed on the next adjacent floor level.
b. In the event that the requirements of this subdivision
can not be met at the time of completion of installation, the
owner shall have a period of thirty (30) days to comply with the
above requirements; provided, however, that during said thirty
(30) day period, a battery operated carbon monoxide detector
with an alarm shall be installed.
70
2. Approved Carbon Monoxide Detectors. Each carbon
monoxide detector as required in accordance with the above
provisions shall comply with NFPA 720 and be ANSI/UL 2034
listed and IAS certified.
3. Signage. A metal or plastic identification plate shall be
permanently mounted to the exterior of the building at a
minimum height of eight (8) feet above grade directly in line
with the exhaust vent terminal for the horizontally vented
gas fueled heating appliance or equipment. The sign shall
read, in print size no less than one-half (1/2) inch in size,
“GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL
OBSTRUCTIONS.”
4. Inspection. The state or local gas inspector of the side
wall horizontally vented gas fueled equipment shall not
approve the installation unless, upon inspection, the inspector
observes carbon monoxide detectors and signage installed
in accordance with the provisions of 248 CMR 5.08(2)(a)1
through 4.
(b) Exemptions: The following equipment is exempt from
248 CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled "Equipment
Not Required To Be Vented" in the most current edition of
NFPA 54 as adopted by the Board; and
2. Product Approved side wall horizontally vented gas fueled
equipment installed in a room or structure separate from the
dwelling, building or structure used in whole or in part for
residential purposes.
(c) Manufacturer requirements — Gas Equipment Venting
System Provided. When the manufacturer of Product
Approved side wall horizontally vented gas equipment provides
a venting system design or venting system components with
the equipment, the instructions provided by the manufacturer
for installation of the equipment and the venting system shall
include:
1. Detailed instructions for the installation of the venting
system design or the venting system components; and
2. A complete parts list for the venting system design or
venting system.
(d) Manufacturer requirements — Gas Equipment
Venting System Not Provided. When the manufacturer of
a Product Approved side wall horizontally vented gas fueled
equipment does not provide the parts for venting the flue
gases, but identifies “special venting systems,” the following
requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions shall
be included with the appliance or equipment installation
instructions; and
2. The “special venting systems” shall be Product Approved
by the Board, and the instructions for that system shall include
a parts list and detailed installation instructions.
(e) A copy of all installation instructions for all Product
Approved side wall horizontally vented gas fueled equipment,
all venting instructions, all parts lists for venting instructions,
and/or all venting design
75D0004
MLDV Series Gas Fireplace
Limited lifetime warranty policy
Lifetime Warranty
The following components are warranted for life to the original owner, subject to proof of purchase: Firebox, Combustion Chamber, Heat Exchanger, Grate and Stainless Steel Burners.
Five Year Warranty
The following components are warranted five (5) years to the original owner, subject of proof
of purchase: Ceramic Fiber Logs.
Basic Warranty
MHSC warrants the components and materials in your gas appliance to be free from manufacturing and material defects for a period of two years from date of installation. After installation,
if any of the components manufactured by MHSC in the appliance are found to be defective in
materials or workmanship, MHSC will, at its option, replace or repair the defective components
at no charge to the original owner. MHSC will also pay for reasonable labor costs incurred in
replacing or repairing such components for a period of two years from date of installation. Any
products presented for warranty repair must be accompanied by a dated proof of purchase.
This Limited Lifetime Warranty will be void if the appliance in not installed by a qualified installer in accordance with the installation instructions. The Limited Lifetime Warranty will also
be void if the appliance is not operated and maintained according to the operating instructions
supplied with the appliance, and does not extend to (1) firebox/burner assembly damage by
accident, neglect, misuse, abuse, alterations, negligence of others, including the installation
thereof by unqualified installers, (2) the costs of removal, reinstallation or transportation of
defective parts on the appliance, or (3) incidental or consequential damage. All service work
must be performed by an authorized service representative.
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of merchantability of fitness for purpose and of all other obligations or liabilities. MHSC
does not assume for it any other obligations or liabilities in connection with sale or use of the
appliance. It states that do not allow limitations on how long an implied warranty lasts, or do
not allow exclusion of indirect damage, those limitations of exclusions may not apply to you.
You may also have additional rights not covered in the Limited Lifetime Warranty.
MHSC reserves the right to investigate any and all the claims against the Limited Lifetime
Warranty and decide upon method of settlement.
IF WARRANTY SERVICE IS NEEDED...
1. Contact your supplier. Make sure you have your warranty, your sales receipt and
the model/serial number of your MHSC product.
2. DO NOT ATTEMPT TO DO ANY SERVICE WORK YOURSELF.
75D0004
71
Based on CSA P.4.1-09
Efficiency Ratings
Model
MLDV500NV
MLDV500PV
EnerGuide Ratings
Fireplace Efficiency (%)
70.5
76.4
D.O.E.
(AFUE%)
67.1
67.3
Recherchez dans la brochure
les caractéristique de rendement
énergétique de foyer au gaz
Énerguide
Based on CSA P.4.1-09
Selon CSA P.4.1-09
MHSC
149 Cleveland Drive • Paris, Kentucky 40361
www.mhsc.com